Home / 11,275.71-15,560.29-6,239.84

Finding the Fourth Proportional to 11,275.71, 15,560.29 and 6,239.84

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Solution

The fourth proportional to 11,275.71, 15,560.29 and 6,239.84 is: 8,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.71 : 15,560.29 = 6,239.84 : x
  2. Step 2: Convert to fraction form
    11,275.71/15,560.29 = 6,239.84/x
  3. Step 3: Cross multiply
    11,275.71x = 15,560.29 × 6,239.84
  4. Step 4: Simplify right side
    11,275.71x = 97,093,719.95
  5. Step 5: Solve for x
    x = 97,093,719.95/11,275.71
  6. Step 6: Final answer
    x = 8,610.87

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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.