Home / 11,250.39-15,532.17-7,718.79

Finding the Fourth Proportional to 11,250.39, 15,532.17 and 7,718.79

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Solution

The fourth proportional to 11,250.39, 15,532.17 and 7,718.79 is: 10,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,250.39 : 15,532.17 = 7,718.79 : x
  2. Step 2: Convert to fraction form
    11,250.39/15,532.17 = 7,718.79/x
  3. Step 3: Cross multiply
    11,250.39x = 15,532.17 × 7,718.79
  4. Step 4: Simplify right side
    11,250.39x = 119,889,558.47
  5. Step 5: Solve for x
    x = 119,889,558.47/11,250.39
  6. Step 6: Final answer
    x = 10,656.48

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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.