Home / 13,216.59-18,239.15-7,247.91

Finding the Fourth Proportional to 13,216.59, 18,239.15 and 7,247.91

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Solution

The fourth proportional to 13,216.59, 18,239.15 and 7,247.91 is: 10,002.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.59 : 18,239.15 = 7,247.91 : x
  2. Step 2: Convert to fraction form
    13,216.59/18,239.15 = 7,247.91/x
  3. Step 3: Cross multiply
    13,216.59x = 18,239.15 × 7,247.91
  4. Step 4: Simplify right side
    13,216.59x = 132,195,717.68
  5. Step 5: Solve for x
    x = 132,195,717.68/13,216.59
  6. Step 6: Final answer
    x = 10,002.26

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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.