Home / 12,291.10-18,432.60-4,498.90

Finding the Fourth Proportional to 12,291.10, 18,432.60 and 4,498.90

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Solution

The fourth proportional to 12,291.10, 18,432.60 and 4,498.90 is: 6,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.10 : 18,432.60 = 4,498.90 : x
  2. Step 2: Convert to fraction form
    12,291.10/18,432.60 = 4,498.90/x
  3. Step 3: Cross multiply
    12,291.10x = 18,432.60 × 4,498.90
  4. Step 4: Simplify right side
    12,291.10x = 82,926,424.14
  5. Step 5: Solve for x
    x = 82,926,424.14/12,291.10
  6. Step 6: Final answer
    x = 6,746.87

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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.