Home / 10,345.10-15,517.65-9,340.70

Finding the Fourth Proportional to 10,345.10, 15,517.65 and 9,340.70

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Solution

The fourth proportional to 10,345.10, 15,517.65 and 9,340.70 is: 14,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.10 : 15,517.65 = 9,340.70 : x
  2. Step 2: Convert to fraction form
    10,345.10/15,517.65 = 9,340.70/x
  3. Step 3: Cross multiply
    10,345.10x = 15,517.65 × 9,340.70
  4. Step 4: Simplify right side
    10,345.10x = 144,945,713.36
  5. Step 5: Solve for x
    x = 144,945,713.36/10,345.10
  6. Step 6: Final answer
    x = 14,011.05

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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.