Home / 15,352.16-21,186.23-9,382.59

Finding the Fourth Proportional to 15,352.16, 21,186.23 and 9,382.59

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Solution

The fourth proportional to 15,352.16, 21,186.23 and 9,382.59 is: 12,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.16 : 21,186.23 = 9,382.59 : x
  2. Step 2: Convert to fraction form
    15,352.16/21,186.23 = 9,382.59/x
  3. Step 3: Cross multiply
    15,352.16x = 21,186.23 × 9,382.59
  4. Step 4: Simplify right side
    15,352.16x = 198,781,662.82
  5. Step 5: Solve for x
    x = 198,781,662.82/15,352.16
  6. Step 6: Final answer
    x = 12,948.13

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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.