Home / 18,505.68-25,531.44-14,487

Finding the Fourth Proportional to 18,505.68, 25,531.44 and 14,487

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Solution

The fourth proportional to 18,505.68, 25,531.44 and 14,487 is: 19,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.68 : 25,531.44 = 14,487 : x
  2. Step 2: Convert to fraction form
    18,505.68/25,531.44 = 14,487/x
  3. Step 3: Cross multiply
    18,505.68x = 25,531.44 × 14,487
  4. Step 4: Simplify right side
    18,505.68x = 369,873,971.28
  5. Step 5: Solve for x
    x = 369,873,971.28/18,505.68
  6. Step 6: Final answer
    x = 19,987.05

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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.