Home / 8,559.90-12,840.66-3,013.20

Finding the Fourth Proportional to 8,559.90, 12,840.66 and 3,013.20

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Solution

The fourth proportional to 8,559.90, 12,840.66 and 3,013.20 is: 4,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.90 : 12,840.66 = 3,013.20 : x
  2. Step 2: Convert to fraction form
    8,559.90/12,840.66 = 3,013.20/x
  3. Step 3: Cross multiply
    8,559.90x = 12,840.66 × 3,013.20
  4. Step 4: Simplify right side
    8,559.90x = 38,691,476.71
  5. Step 5: Solve for x
    x = 38,691,476.71/8,559.90
  6. Step 6: Final answer
    x = 4,520.09

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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.