Home / 15,648.38-23,477.80-5,118.88

Finding the Fourth Proportional to 15,648.38, 23,477.80 and 5,118.88

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Solution

The fourth proportional to 15,648.38, 23,477.80 and 5,118.88 is: 7,680.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.38 : 23,477.80 = 5,118.88 : x
  2. Step 2: Convert to fraction form
    15,648.38/23,477.80 = 5,118.88/x
  3. Step 3: Cross multiply
    15,648.38x = 23,477.80 × 5,118.88
  4. Step 4: Simplify right side
    15,648.38x = 120,180,040.86
  5. Step 5: Solve for x
    x = 120,180,040.86/15,648.38
  6. Step 6: Final answer
    x = 7,680.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.