Home / 16,811.13-25,220.75-5,123.64

Finding the Fourth Proportional to 16,811.13, 25,220.75 and 5,123.64

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Solution

The fourth proportional to 16,811.13, 25,220.75 and 5,123.64 is: 7,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.13 : 25,220.75 = 5,123.64 : x
  2. Step 2: Convert to fraction form
    16,811.13/25,220.75 = 5,123.64/x
  3. Step 3: Cross multiply
    16,811.13x = 25,220.75 × 5,123.64
  4. Step 4: Simplify right side
    16,811.13x = 129,222,043.53
  5. Step 5: Solve for x
    x = 129,222,043.53/16,811.13
  6. Step 6: Final answer
    x = 7,686.70

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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.