Home / 10,091.31-15,113.47-9,740.92

Finding the Fourth Proportional to 10,091.31, 15,113.47 and 9,740.92

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Solution

The fourth proportional to 10,091.31, 15,113.47 and 9,740.92 is: 14,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.31 : 15,113.47 = 9,740.92 : x
  2. Step 2: Convert to fraction form
    10,091.31/15,113.47 = 9,740.92/x
  3. Step 3: Cross multiply
    10,091.31x = 15,113.47 × 9,740.92
  4. Step 4: Simplify right side
    10,091.31x = 147,218,977.92
  5. Step 5: Solve for x
    x = 147,218,977.92/10,091.31
  6. Step 6: Final answer
    x = 14,588.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.