Home / 15,156.81-22,738.32-6,391.71

Finding the Fourth Proportional to 15,156.81, 22,738.32 and 6,391.71

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Solution

The fourth proportional to 15,156.81, 22,738.32 and 6,391.71 is: 9,588.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.81 : 22,738.32 = 6,391.71 : x
  2. Step 2: Convert to fraction form
    15,156.81/22,738.32 = 6,391.71/x
  3. Step 3: Cross multiply
    15,156.81x = 22,738.32 × 6,391.71
  4. Step 4: Simplify right side
    15,156.81x = 145,336,747.33
  5. Step 5: Solve for x
    x = 145,336,747.33/15,156.81
  6. Step 6: Final answer
    x = 9,588.87

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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.