Home / 18,487.53-25,507.98-13,763.61

Finding the Fourth Proportional to 18,487.53, 25,507.98 and 13,763.61

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Solution

The fourth proportional to 18,487.53, 25,507.98 and 13,763.61 is: 18,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.53 : 25,507.98 = 13,763.61 : x
  2. Step 2: Convert to fraction form
    18,487.53/25,507.98 = 13,763.61/x
  3. Step 3: Cross multiply
    18,487.53x = 25,507.98 × 13,763.61
  4. Step 4: Simplify right side
    18,487.53x = 351,081,888.61
  5. Step 5: Solve for x
    x = 351,081,888.61/18,487.53
  6. Step 6: Final answer
    x = 18,990.20

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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.