Home / 15,280.43-21,080.66-9,605.16

Finding the Fourth Proportional to 15,280.43, 21,080.66 and 9,605.16

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Solution

The fourth proportional to 15,280.43, 21,080.66 and 9,605.16 is: 13,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.43 : 21,080.66 = 9,605.16 : x
  2. Step 2: Convert to fraction form
    15,280.43/21,080.66 = 9,605.16/x
  3. Step 3: Cross multiply
    15,280.43x = 21,080.66 × 9,605.16
  4. Step 4: Simplify right side
    15,280.43x = 202,483,064.18
  5. Step 5: Solve for x
    x = 202,483,064.18/15,280.43
  6. Step 6: Final answer
    x = 13,251.14

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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.