Home / 16,279.20-24,386.40-8,870.40

Finding the Fourth Proportional to 16,279.20, 24,386.40 and 8,870.40

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Solution

The fourth proportional to 16,279.20, 24,386.40 and 8,870.40 is: 13,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,279.20 : 24,386.40 = 8,870.40 : x
  2. Step 2: Convert to fraction form
    16,279.20/24,386.40 = 8,870.40/x
  3. Step 3: Cross multiply
    16,279.20x = 24,386.40 × 8,870.40
  4. Step 4: Simplify right side
    16,279.20x = 216,317,122.56
  5. Step 5: Solve for x
    x = 216,317,122.56/16,279.20
  6. Step 6: Final answer
    x = 13,287.95

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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.