Home / 15,680.16-21,629.52-10,013.04

Finding the Fourth Proportional to 15,680.16, 21,629.52 and 10,013.04

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Solution

The fourth proportional to 15,680.16, 21,629.52 and 10,013.04 is: 13,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.16 : 21,629.52 = 10,013.04 : x
  2. Step 2: Convert to fraction form
    15,680.16/21,629.52 = 10,013.04/x
  3. Step 3: Cross multiply
    15,680.16x = 21,629.52 × 10,013.04
  4. Step 4: Simplify right side
    15,680.16x = 216,577,248.94
  5. Step 5: Solve for x
    x = 216,577,248.94/15,680.16
  6. Step 6: Final answer
    x = 13,812.18

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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.