Home / 14,972.48-20,663.20-8,258.72

Finding the Fourth Proportional to 14,972.48, 20,663.20 and 8,258.72

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Solution

The fourth proportional to 14,972.48, 20,663.20 and 8,258.72 is: 11,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.48 : 20,663.20 = 8,258.72 : x
  2. Step 2: Convert to fraction form
    14,972.48/20,663.20 = 8,258.72/x
  3. Step 3: Cross multiply
    14,972.48x = 20,663.20 × 8,258.72
  4. Step 4: Simplify right side
    14,972.48x = 170,651,583.10
  5. Step 5: Solve for x
    x = 170,651,583.10/14,972.48
  6. Step 6: Final answer
    x = 11,397.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.