Home / 15,360.46-21,197.48-8,646.19

Finding the Fourth Proportional to 15,360.46, 21,197.48 and 8,646.19

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Solution

The fourth proportional to 15,360.46, 21,197.48 and 8,646.19 is: 11,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.46 : 21,197.48 = 8,646.19 : x
  2. Step 2: Convert to fraction form
    15,360.46/21,197.48 = 8,646.19/x
  3. Step 3: Cross multiply
    15,360.46x = 21,197.48 × 8,646.19
  4. Step 4: Simplify right side
    15,360.46x = 183,277,290.38
  5. Step 5: Solve for x
    x = 183,277,290.38/15,360.46
  6. Step 6: Final answer
    x = 11,931.76

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Half scale
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Double scale
Find fourth proportional to 15,361.46, 21,198.86 and 8,647.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.