Home / 15,056.72-20,778.48-9,013.16

Finding the Fourth Proportional to 15,056.72, 20,778.48 and 9,013.16

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Solution

The fourth proportional to 15,056.72, 20,778.48 and 9,013.16 is: 12,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.72 : 20,778.48 = 9,013.16 : x
  2. Step 2: Convert to fraction form
    15,056.72/20,778.48 = 9,013.16/x
  3. Step 3: Cross multiply
    15,056.72x = 20,778.48 × 9,013.16
  4. Step 4: Simplify right side
    15,056.72x = 187,279,764.80
  5. Step 5: Solve for x
    x = 187,279,764.80/15,056.72
  6. Step 6: Final answer
    x = 12,438.28

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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.