Home / 15,360.56-21,197.49-8,646.16

Finding the Fourth Proportional to 15,360.56, 21,197.49 and 8,646.16

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Solution

The fourth proportional to 15,360.56, 21,197.49 and 8,646.16 is: 11,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.56 : 21,197.49 = 8,646.16 : x
  2. Step 2: Convert to fraction form
    15,360.56/21,197.49 = 8,646.16/x
  3. Step 3: Cross multiply
    15,360.56x = 21,197.49 × 8,646.16
  4. Step 4: Simplify right side
    15,360.56x = 183,276,890.14
  5. Step 5: Solve for x
    x = 183,276,890.14/15,360.56
  6. Step 6: Final answer
    x = 11,931.65

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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.