Home / 15,060.86-20,737.58-13,379.34

Finding the Fourth Proportional to 15,060.86, 20,737.58 and 13,379.34

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Solution

The fourth proportional to 15,060.86, 20,737.58 and 13,379.34 is: 18,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.86 : 20,737.58 = 13,379.34 : x
  2. Step 2: Convert to fraction form
    15,060.86/20,737.58 = 13,379.34/x
  3. Step 3: Cross multiply
    15,060.86x = 20,737.58 × 13,379.34
  4. Step 4: Simplify right side
    15,060.86x = 277,455,133.60
  5. Step 5: Solve for x
    x = 277,455,133.60/15,060.86
  6. Step 6: Final answer
    x = 18,422.26

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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.