Home / 15,872.02-23,808.52-4,778.78

Finding the Fourth Proportional to 15,872.02, 23,808.52 and 4,778.78

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Solution

The fourth proportional to 15,872.02, 23,808.52 and 4,778.78 is: 7,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.02 : 23,808.52 = 4,778.78 : x
  2. Step 2: Convert to fraction form
    15,872.02/23,808.52 = 4,778.78/x
  3. Step 3: Cross multiply
    15,872.02x = 23,808.52 × 4,778.78
  4. Step 4: Simplify right side
    15,872.02x = 113,775,679.21
  5. Step 5: Solve for x
    x = 113,775,679.21/15,872.02
  6. Step 6: Final answer
    x = 7,168.32

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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.