Home / 12,367.77-18,560.78-9,089.70

Finding the Fourth Proportional to 12,367.77, 18,560.78 and 9,089.70

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Solution

The fourth proportional to 12,367.77, 18,560.78 and 9,089.70 is: 13,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.77 : 18,560.78 = 9,089.70 : x
  2. Step 2: Convert to fraction form
    12,367.77/18,560.78 = 9,089.70/x
  3. Step 3: Cross multiply
    12,367.77x = 18,560.78 × 9,089.70
  4. Step 4: Simplify right side
    12,367.77x = 168,711,876.52
  5. Step 5: Solve for x
    x = 168,711,876.52/12,367.77
  6. Step 6: Final answer
    x = 13,641.25

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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.