Home / 13,377.41-18,459.30-7,407.57

Finding the Fourth Proportional to 13,377.41, 18,459.30 and 7,407.57

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Solution

The fourth proportional to 13,377.41, 18,459.30 and 7,407.57 is: 10,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.41 : 18,459.30 = 7,407.57 : x
  2. Step 2: Convert to fraction form
    13,377.41/18,459.30 = 7,407.57/x
  3. Step 3: Cross multiply
    13,377.41x = 18,459.30 × 7,407.57
  4. Step 4: Simplify right side
    13,377.41x = 136,738,556.90
  5. Step 5: Solve for x
    x = 136,738,556.90/13,377.41
  6. Step 6: Final answer
    x = 10,221.61

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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.