Home / 12,298.90-18,446.42-4,505.90

Finding the Fourth Proportional to 12,298.90, 18,446.42 and 4,505.90

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Solution

The fourth proportional to 12,298.90, 18,446.42 and 4,505.90 is: 6,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.90 : 18,446.42 = 4,505.90 : x
  2. Step 2: Convert to fraction form
    12,298.90/18,446.42 = 4,505.90/x
  3. Step 3: Cross multiply
    12,298.90x = 18,446.42 × 4,505.90
  4. Step 4: Simplify right side
    12,298.90x = 83,117,723.88
  5. Step 5: Solve for x
    x = 83,117,723.88/12,298.90
  6. Step 6: Final answer
    x = 6,758.14

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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.