Home / 15,950.60-22,011.66-8,780.28

Finding the Fourth Proportional to 15,950.60, 22,011.66 and 8,780.28

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Solution

The fourth proportional to 15,950.60, 22,011.66 and 8,780.28 is: 12,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,950.60 : 22,011.66 = 8,780.28 : x
  2. Step 2: Convert to fraction form
    15,950.60/22,011.66 = 8,780.28/x
  3. Step 3: Cross multiply
    15,950.60x = 22,011.66 × 8,780.28
  4. Step 4: Simplify right side
    15,950.60x = 193,268,538.06
  5. Step 5: Solve for x
    x = 193,268,538.06/15,950.60
  6. Step 6: Final answer
    x = 12,116.69

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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.