Home / 11,290.26-15,588.17-7,047.79

Finding the Fourth Proportional to 11,290.26, 15,588.17 and 7,047.79

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Solution

The fourth proportional to 11,290.26, 15,588.17 and 7,047.79 is: 9,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.26 : 15,588.17 = 7,047.79 : x
  2. Step 2: Convert to fraction form
    11,290.26/15,588.17 = 7,047.79/x
  3. Step 3: Cross multiply
    11,290.26x = 15,588.17 × 7,047.79
  4. Step 4: Simplify right side
    11,290.26x = 109,862,148.64
  5. Step 5: Solve for x
    x = 109,862,148.64/11,290.26
  6. Step 6: Final answer
    x = 9,730.70

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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.