Home / 18,839.28-25,992.12-13,457.16

Finding the Fourth Proportional to 18,839.28, 25,992.12 and 13,457.16

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Solution

The fourth proportional to 18,839.28, 25,992.12 and 13,457.16 is: 18,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.28 : 25,992.12 = 13,457.16 : x
  2. Step 2: Convert to fraction form
    18,839.28/25,992.12 = 13,457.16/x
  3. Step 3: Cross multiply
    18,839.28x = 25,992.12 × 13,457.16
  4. Step 4: Simplify right side
    18,839.28x = 349,780,117.58
  5. Step 5: Solve for x
    x = 349,780,117.58/18,839.28
  6. Step 6: Final answer
    x = 18,566.53

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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.