Home / 11,125.08-15,317.64-9,443.16

Finding the Fourth Proportional to 11,125.08, 15,317.64 and 9,443.16

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Solution

The fourth proportional to 11,125.08, 15,317.64 and 9,443.16 is: 13,001.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.08 : 15,317.64 = 9,443.16 : x
  2. Step 2: Convert to fraction form
    11,125.08/15,317.64 = 9,443.16/x
  3. Step 3: Cross multiply
    11,125.08x = 15,317.64 × 9,443.16
  4. Step 4: Simplify right side
    11,125.08x = 144,646,925.34
  5. Step 5: Solve for x
    x = 144,646,925.34/11,125.08
  6. Step 6: Final answer
    x = 13,001.88

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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.