Home / 10,892.92-15,030.24-7,115.08

Finding the Fourth Proportional to 10,892.92, 15,030.24 and 7,115.08

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Solution

The fourth proportional to 10,892.92, 15,030.24 and 7,115.08 is: 9,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.92 : 15,030.24 = 7,115.08 : x
  2. Step 2: Convert to fraction form
    10,892.92/15,030.24 = 7,115.08/x
  3. Step 3: Cross multiply
    10,892.92x = 15,030.24 × 7,115.08
  4. Step 4: Simplify right side
    10,892.92x = 106,941,360.02
  5. Step 5: Solve for x
    x = 106,941,360.02/10,892.92
  6. Step 6: Final answer
    x = 9,817.51

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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.