Home / 8,779.17-12,115.25-4,800.28

Finding the Fourth Proportional to 8,779.17, 12,115.25 and 4,800.28

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Solution

The fourth proportional to 8,779.17, 12,115.25 and 4,800.28 is: 6,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.17 : 12,115.25 = 4,800.28 : x
  2. Step 2: Convert to fraction form
    8,779.17/12,115.25 = 4,800.28/x
  3. Step 3: Cross multiply
    8,779.17x = 12,115.25 × 4,800.28
  4. Step 4: Simplify right side
    8,779.17x = 58,156,605.70
  5. Step 5: Solve for x
    x = 58,156,605.70/8,779.17
  6. Step 6: Final answer
    x = 6,624.39

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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.