Home / 8,672.20-13,022.70-4,779.40

Finding the Fourth Proportional to 8,672.20, 13,022.70 and 4,779.40

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Solution

The fourth proportional to 8,672.20, 13,022.70 and 4,779.40 is: 7,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.20 : 13,022.70 = 4,779.40 : x
  2. Step 2: Convert to fraction form
    8,672.20/13,022.70 = 4,779.40/x
  3. Step 3: Cross multiply
    8,672.20x = 13,022.70 × 4,779.40
  4. Step 4: Simplify right side
    8,672.20x = 62,240,692.38
  5. Step 5: Solve for x
    x = 62,240,692.38/8,672.20
  6. Step 6: Final answer
    x = 7,177.04

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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.