Home / 10,330.70-15,534.45-8,641.10

Finding the Fourth Proportional to 10,330.70, 15,534.45 and 8,641.10

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Solution

The fourth proportional to 10,330.70, 15,534.45 and 8,641.10 is: 12,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.70 : 15,534.45 = 8,641.10 : x
  2. Step 2: Convert to fraction form
    10,330.70/15,534.45 = 8,641.10/x
  3. Step 3: Cross multiply
    10,330.70x = 15,534.45 × 8,641.10
  4. Step 4: Simplify right side
    10,330.70x = 134,234,735.90
  5. Step 5: Solve for x
    x = 134,234,735.90/10,330.70
  6. Step 6: Final answer
    x = 12,993.77

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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.