Home / 11,117.60-16,712.85-7,853.30

Finding the Fourth Proportional to 11,117.60, 16,712.85 and 7,853.30

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Solution

The fourth proportional to 11,117.60, 16,712.85 and 7,853.30 is: 11,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.60 : 16,712.85 = 7,853.30 : x
  2. Step 2: Convert to fraction form
    11,117.60/16,712.85 = 7,853.30/x
  3. Step 3: Cross multiply
    11,117.60x = 16,712.85 × 7,853.30
  4. Step 4: Simplify right side
    11,117.60x = 131,251,024.91
  5. Step 5: Solve for x
    x = 131,251,024.91/11,117.60
  6. Step 6: Final answer
    x = 11,805.70

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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.