Home / 11,131.08-15,325.92-9,449.16

Finding the Fourth Proportional to 11,131.08, 15,325.92 and 9,449.16

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Solution

The fourth proportional to 11,131.08, 15,325.92 and 9,449.16 is: 13,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.08 : 15,325.92 = 9,449.16 : x
  2. Step 2: Convert to fraction form
    11,131.08/15,325.92 = 9,449.16/x
  3. Step 3: Cross multiply
    11,131.08x = 15,325.92 × 9,449.16
  4. Step 4: Simplify right side
    11,131.08x = 144,817,070.23
  5. Step 5: Solve for x
    x = 144,817,070.23/11,131.08
  6. Step 6: Final answer
    x = 13,010.15

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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.