Home / 11,972.15-16,520.50-6,934.76

Finding the Fourth Proportional to 11,972.15, 16,520.50 and 6,934.76

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Solution

The fourth proportional to 11,972.15, 16,520.50 and 6,934.76 is: 9,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.15 : 16,520.50 = 6,934.76 : x
  2. Step 2: Convert to fraction form
    11,972.15/16,520.50 = 6,934.76/x
  3. Step 3: Cross multiply
    11,972.15x = 16,520.50 × 6,934.76
  4. Step 4: Simplify right side
    11,972.15x = 114,565,619.98
  5. Step 5: Solve for x
    x = 114,565,619.98/11,972.15
  6. Step 6: Final answer
    x = 9,569.35

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Half scale
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Double scale
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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.