Home / 10,008.42-13,811.43-6,471.54

Finding the Fourth Proportional to 10,008.42, 13,811.43 and 6,471.54

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Solution

The fourth proportional to 10,008.42, 13,811.43 and 6,471.54 is: 8,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.42 : 13,811.43 = 6,471.54 : x
  2. Step 2: Convert to fraction form
    10,008.42/13,811.43 = 6,471.54/x
  3. Step 3: Cross multiply
    10,008.42x = 13,811.43 × 6,471.54
  4. Step 4: Simplify right side
    10,008.42x = 89,381,221.70
  5. Step 5: Solve for x
    x = 89,381,221.70/10,008.42
  6. Step 6: Final answer
    x = 8,930.60

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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.