Home / 12,648.30-18,972.45-8,954.70

Finding the Fourth Proportional to 12,648.30, 18,972.45 and 8,954.70

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Solution

The fourth proportional to 12,648.30, 18,972.45 and 8,954.70 is: 13,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.30 : 18,972.45 = 8,954.70 : x
  2. Step 2: Convert to fraction form
    12,648.30/18,972.45 = 8,954.70/x
  3. Step 3: Cross multiply
    12,648.30x = 18,972.45 × 8,954.70
  4. Step 4: Simplify right side
    12,648.30x = 169,892,598.02
  5. Step 5: Solve for x
    x = 169,892,598.02/12,648.30
  6. Step 6: Final answer
    x = 13,432.05

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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.