Home / 10,787.18-16,159.58-9,611.66

Finding the Fourth Proportional to 10,787.18, 16,159.58 and 9,611.66

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Solution

The fourth proportional to 10,787.18, 16,159.58 and 9,611.66 is: 14,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.18 : 16,159.58 = 9,611.66 : x
  2. Step 2: Convert to fraction form
    10,787.18/16,159.58 = 9,611.66/x
  3. Step 3: Cross multiply
    10,787.18x = 16,159.58 × 9,611.66
  4. Step 4: Simplify right side
    10,787.18x = 155,320,390.05
  5. Step 5: Solve for x
    x = 155,320,390.05/10,787.18
  6. Step 6: Final answer
    x = 14,398.62

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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.