Home / 11,115.88-15,275.76-10,601.92

Finding the Fourth Proportional to 11,115.88, 15,275.76 and 10,601.92

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Solution

The fourth proportional to 11,115.88, 15,275.76 and 10,601.92 is: 14,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.88 : 15,275.76 = 10,601.92 : x
  2. Step 2: Convert to fraction form
    11,115.88/15,275.76 = 10,601.92/x
  3. Step 3: Cross multiply
    11,115.88x = 15,275.76 × 10,601.92
  4. Step 4: Simplify right side
    11,115.88x = 161,952,332.45
  5. Step 5: Solve for x
    x = 161,952,332.45/11,115.88
  6. Step 6: Final answer
    x = 14,569.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.