Home / 14,780.59-22,155.90-12,622.75

Finding the Fourth Proportional to 14,780.59, 22,155.90 and 12,622.75

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Solution

The fourth proportional to 14,780.59, 22,155.90 and 12,622.75 is: 18,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.59 : 22,155.90 = 12,622.75 : x
  2. Step 2: Convert to fraction form
    14,780.59/22,155.90 = 12,622.75/x
  3. Step 3: Cross multiply
    14,780.59x = 22,155.90 × 12,622.75
  4. Step 4: Simplify right side
    14,780.59x = 279,668,386.73
  5. Step 5: Solve for x
    x = 279,668,386.73/14,780.59
  6. Step 6: Final answer
    x = 18,921.33

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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.