Home / 15,275.16-21,092.28-9,619.02

Finding the Fourth Proportional to 15,275.16, 21,092.28 and 9,619.02

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Solution

The fourth proportional to 15,275.16, 21,092.28 and 9,619.02 is: 13,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.16 : 21,092.28 = 9,619.02 : x
  2. Step 2: Convert to fraction form
    15,275.16/21,092.28 = 9,619.02/x
  3. Step 3: Cross multiply
    15,275.16x = 21,092.28 × 9,619.02
  4. Step 4: Simplify right side
    15,275.16x = 202,887,063.17
  5. Step 5: Solve for x
    x = 202,887,063.17/15,275.16
  6. Step 6: Final answer
    x = 13,282.16

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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.