Home / 12,154.87-18,265.25-6,612.31

Finding the Fourth Proportional to 12,154.87, 18,265.25 and 6,612.31

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Solution

The fourth proportional to 12,154.87, 18,265.25 and 6,612.31 is: 9,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.87 : 18,265.25 = 6,612.31 : x
  2. Step 2: Convert to fraction form
    12,154.87/18,265.25 = 6,612.31/x
  3. Step 3: Cross multiply
    12,154.87x = 18,265.25 × 6,612.31
  4. Step 4: Simplify right side
    12,154.87x = 120,775,462.17
  5. Step 5: Solve for x
    x = 120,775,462.17/12,154.87
  6. Step 6: Final answer
    x = 9,936.38

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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.