Home / 14,258.18-21,387.54-13,487.06

Finding the Fourth Proportional to 14,258.18, 21,387.54 and 13,487.06

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Solution

The fourth proportional to 14,258.18, 21,387.54 and 13,487.06 is: 20,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.18 : 21,387.54 = 13,487.06 : x
  2. Step 2: Convert to fraction form
    14,258.18/21,387.54 = 13,487.06/x
  3. Step 3: Cross multiply
    14,258.18x = 21,387.54 × 13,487.06
  4. Step 4: Simplify right side
    14,258.18x = 288,455,035.23
  5. Step 5: Solve for x
    x = 288,455,035.23/14,258.18
  6. Step 6: Final answer
    x = 20,230.85

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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.