Home / 16,811.13-25,220.48-5,125.53

Finding the Fourth Proportional to 16,811.13, 25,220.48 and 5,125.53

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Solution

The fourth proportional to 16,811.13, 25,220.48 and 5,125.53 is: 7,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.13 : 25,220.48 = 5,125.53 : x
  2. Step 2: Convert to fraction form
    16,811.13/25,220.48 = 5,125.53/x
  3. Step 3: Cross multiply
    16,811.13x = 25,220.48 × 5,125.53
  4. Step 4: Simplify right side
    16,811.13x = 129,268,301.23
  5. Step 5: Solve for x
    x = 129,268,301.23/16,811.13
  6. Step 6: Final answer
    x = 7,689.45

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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.