Home / 15,625.08-23,419.62-8,685.72

Finding the Fourth Proportional to 15,625.08, 23,419.62 and 8,685.72

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Solution

The fourth proportional to 15,625.08, 23,419.62 and 8,685.72 is: 13,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.08 : 23,419.62 = 8,685.72 : x
  2. Step 2: Convert to fraction form
    15,625.08/23,419.62 = 8,685.72/x
  3. Step 3: Cross multiply
    15,625.08x = 23,419.62 × 8,685.72
  4. Step 4: Simplify right side
    15,625.08x = 203,416,261.83
  5. Step 5: Solve for x
    x = 203,416,261.83/15,625.08
  6. Step 6: Final answer
    x = 13,018.57

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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.