Home / 16,767.75-23,139.50-9,315.75

Finding the Fourth Proportional to 16,767.75, 23,139.50 and 9,315.75

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Solution

The fourth proportional to 16,767.75, 23,139.50 and 9,315.75 is: 12,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,767.75 : 23,139.50 = 9,315.75 : x
  2. Step 2: Convert to fraction form
    16,767.75/23,139.50 = 9,315.75/x
  3. Step 3: Cross multiply
    16,767.75x = 23,139.50 × 9,315.75
  4. Step 4: Simplify right side
    16,767.75x = 215,561,750.55
  5. Step 5: Solve for x
    x = 215,561,750.55/16,767.75
  6. Step 6: Final answer
    x = 12,855.74

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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.