Home / 12,615.48-18,924.77-4,294.85

Finding the Fourth Proportional to 12,615.48, 18,924.77 and 4,294.85

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Solution

The fourth proportional to 12,615.48, 18,924.77 and 4,294.85 is: 6,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.48 : 18,924.77 = 4,294.85 : x
  2. Step 2: Convert to fraction form
    12,615.48/18,924.77 = 4,294.85/x
  3. Step 3: Cross multiply
    12,615.48x = 18,924.77 × 4,294.85
  4. Step 4: Simplify right side
    12,615.48x = 81,278,964.55
  5. Step 5: Solve for x
    x = 81,278,964.55/12,615.48
  6. Step 6: Final answer
    x = 6,442.80

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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.