Home / 12,560.47-17,335.84-8,311.62

Finding the Fourth Proportional to 12,560.47, 17,335.84 and 8,311.62

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Solution

The fourth proportional to 12,560.47, 17,335.84 and 8,311.62 is: 11,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.47 : 17,335.84 = 8,311.62 : x
  2. Step 2: Convert to fraction form
    12,560.47/17,335.84 = 8,311.62/x
  3. Step 3: Cross multiply
    12,560.47x = 17,335.84 × 8,311.62
  4. Step 4: Simplify right side
    12,560.47x = 144,088,914.46
  5. Step 5: Solve for x
    x = 144,088,914.46/12,560.47
  6. Step 6: Final answer
    x = 11,471.62

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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.