Home / 10,278.90-14,193.54-6,508.71

Finding the Fourth Proportional to 10,278.90, 14,193.54 and 6,508.71

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Solution

The fourth proportional to 10,278.90, 14,193.54 and 6,508.71 is: 8,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.90 : 14,193.54 = 6,508.71 : x
  2. Step 2: Convert to fraction form
    10,278.90/14,193.54 = 6,508.71/x
  3. Step 3: Cross multiply
    10,278.90x = 14,193.54 × 6,508.71
  4. Step 4: Simplify right side
    10,278.90x = 92,381,635.73
  5. Step 5: Solve for x
    x = 92,381,635.73/10,278.90
  6. Step 6: Final answer
    x = 8,987.50

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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.