Home / 10,541.56-15,730.49-9,141.88

Finding the Fourth Proportional to 10,541.56, 15,730.49 and 9,141.88

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Solution

The fourth proportional to 10,541.56, 15,730.49 and 9,141.88 is: 13,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,541.56 : 15,730.49 = 9,141.88 : x
  2. Step 2: Convert to fraction form
    10,541.56/15,730.49 = 9,141.88/x
  3. Step 3: Cross multiply
    10,541.56x = 15,730.49 × 9,141.88
  4. Step 4: Simplify right side
    10,541.56x = 143,806,251.92
  5. Step 5: Solve for x
    x = 143,806,251.92/10,541.56
  6. Step 6: Final answer
    x = 13,641.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.