Home / 12,589.12-18,883.68-5,655.52

Finding the Fourth Proportional to 12,589.12, 18,883.68 and 5,655.52

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Solution

The fourth proportional to 12,589.12, 18,883.68 and 5,655.52 is: 8,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.12 : 18,883.68 = 5,655.52 : x
  2. Step 2: Convert to fraction form
    12,589.12/18,883.68 = 5,655.52/x
  3. Step 3: Cross multiply
    12,589.12x = 18,883.68 × 5,655.52
  4. Step 4: Simplify right side
    12,589.12x = 106,797,029.91
  5. Step 5: Solve for x
    x = 106,797,029.91/12,589.12
  6. Step 6: Final answer
    x = 8,483.28

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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.