Home / 15,554.21-21,464.93-8,480.68

Finding the Fourth Proportional to 15,554.21, 21,464.93 and 8,480.68

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Solution

The fourth proportional to 15,554.21, 21,464.93 and 8,480.68 is: 11,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.21 : 21,464.93 = 8,480.68 : x
  2. Step 2: Convert to fraction form
    15,554.21/21,464.93 = 8,480.68/x
  3. Step 3: Cross multiply
    15,554.21x = 21,464.93 × 8,480.68
  4. Step 4: Simplify right side
    15,554.21x = 182,037,052.82
  5. Step 5: Solve for x
    x = 182,037,052.82/15,554.21
  6. Step 6: Final answer
    x = 11,703.40

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Double scale
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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.