Home / 15,058.85-20,734.82-13,377.34

Finding the Fourth Proportional to 15,058.85, 20,734.82 and 13,377.34

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Solution

The fourth proportional to 15,058.85, 20,734.82 and 13,377.34 is: 18,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.85 : 20,734.82 = 13,377.34 : x
  2. Step 2: Convert to fraction form
    15,058.85/20,734.82 = 13,377.34/x
  3. Step 3: Cross multiply
    15,058.85x = 20,734.82 × 13,377.34
  4. Step 4: Simplify right side
    15,058.85x = 277,376,821.42
  5. Step 5: Solve for x
    x = 277,376,821.42/15,058.85
  6. Step 6: Final answer
    x = 18,419.52

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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.