Home / 12,446.30-18,679.18-4,657.34

Finding the Fourth Proportional to 12,446.30, 18,679.18 and 4,657.34

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Solution

The fourth proportional to 12,446.30, 18,679.18 and 4,657.34 is: 6,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.30 : 18,679.18 = 4,657.34 : x
  2. Step 2: Convert to fraction form
    12,446.30/18,679.18 = 4,657.34/x
  3. Step 3: Cross multiply
    12,446.30x = 18,679.18 × 4,657.34
  4. Step 4: Simplify right side
    12,446.30x = 86,995,292.18
  5. Step 5: Solve for x
    x = 86,995,292.18/12,446.30
  6. Step 6: Final answer
    x = 6,989.65

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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.