Home / 15,774.28-23,661.90-4,087.72

Finding the Fourth Proportional to 15,774.28, 23,661.90 and 4,087.72

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Solution

The fourth proportional to 15,774.28, 23,661.90 and 4,087.72 is: 6,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.28 : 23,661.90 = 4,087.72 : x
  2. Step 2: Convert to fraction form
    15,774.28/23,661.90 = 4,087.72/x
  3. Step 3: Cross multiply
    15,774.28x = 23,661.90 × 4,087.72
  4. Step 4: Simplify right side
    15,774.28x = 96,723,221.87
  5. Step 5: Solve for x
    x = 96,723,221.87/15,774.28
  6. Step 6: Final answer
    x = 6,131.70

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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.