Home / 13,347.60-18,418.19-7,377.77

Finding the Fourth Proportional to 13,347.60, 18,418.19 and 7,377.77

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Solution

The fourth proportional to 13,347.60, 18,418.19 and 7,377.77 is: 10,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.60 : 18,418.19 = 7,377.77 : x
  2. Step 2: Convert to fraction form
    13,347.60/18,418.19 = 7,377.77/x
  3. Step 3: Cross multiply
    13,347.60x = 18,418.19 × 7,377.77
  4. Step 4: Simplify right side
    13,347.60x = 135,885,040.66
  5. Step 5: Solve for x
    x = 135,885,040.66/13,347.60
  6. Step 6: Final answer
    x = 10,180.48

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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.