Home / 14,258.80-21,388.20-6,458.52

Finding the Fourth Proportional to 14,258.80, 21,388.20 and 6,458.52

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Solution

The fourth proportional to 14,258.80, 21,388.20 and 6,458.52 is: 9,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.80 : 21,388.20 = 6,458.52 : x
  2. Step 2: Convert to fraction form
    14,258.80/21,388.20 = 6,458.52/x
  3. Step 3: Cross multiply
    14,258.80x = 21,388.20 × 6,458.52
  4. Step 4: Simplify right side
    14,258.80x = 138,136,117.46
  5. Step 5: Solve for x
    x = 138,136,117.46/14,258.80
  6. Step 6: Final answer
    x = 9,687.78

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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.