Home / 18,868.55-26,037.45-10,909.08

Finding the Fourth Proportional to 18,868.55, 26,037.45 and 10,909.08

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Solution

The fourth proportional to 18,868.55, 26,037.45 and 10,909.08 is: 15,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.55 : 26,037.45 = 10,909.08 : x
  2. Step 2: Convert to fraction form
    18,868.55/26,037.45 = 10,909.08/x
  3. Step 3: Cross multiply
    18,868.55x = 26,037.45 × 10,909.08
  4. Step 4: Simplify right side
    18,868.55x = 284,044,625.05
  5. Step 5: Solve for x
    x = 284,044,625.05/18,868.55
  6. Step 6: Final answer
    x = 15,053.87

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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.