Home / 13,216.54-18,239.22-7,248.55

Finding the Fourth Proportional to 13,216.54, 18,239.22 and 7,248.55

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Solution

The fourth proportional to 13,216.54, 18,239.22 and 7,248.55 is: 10,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.54 : 18,239.22 = 7,248.55 : x
  2. Step 2: Convert to fraction form
    13,216.54/18,239.22 = 7,248.55/x
  3. Step 3: Cross multiply
    13,216.54x = 18,239.22 × 7,248.55
  4. Step 4: Simplify right side
    13,216.54x = 132,207,898.13
  5. Step 5: Solve for x
    x = 132,207,898.13/13,216.54
  6. Step 6: Final answer
    x = 10,003.22

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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.