Home / 15,288.94-22,912.55-7,877.71

Finding the Fourth Proportional to 15,288.94, 22,912.55 and 7,877.71

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Solution

The fourth proportional to 15,288.94, 22,912.55 and 7,877.71 is: 11,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.94 : 22,912.55 = 7,877.71 : x
  2. Step 2: Convert to fraction form
    15,288.94/22,912.55 = 7,877.71/x
  3. Step 3: Cross multiply
    15,288.94x = 22,912.55 × 7,877.71
  4. Step 4: Simplify right side
    15,288.94x = 180,498,424.26
  5. Step 5: Solve for x
    x = 180,498,424.26/15,288.94
  6. Step 6: Final answer
    x = 11,805.82

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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.