Home / 12,445.61-18,671.31-4,125.02

Finding the Fourth Proportional to 12,445.61, 18,671.31 and 4,125.02

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Solution

The fourth proportional to 12,445.61, 18,671.31 and 4,125.02 is: 6,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.61 : 18,671.31 = 4,125.02 : x
  2. Step 2: Convert to fraction form
    12,445.61/18,671.31 = 4,125.02/x
  3. Step 3: Cross multiply
    12,445.61x = 18,671.31 × 4,125.02
  4. Step 4: Simplify right side
    12,445.61x = 77,019,433.82
  5. Step 5: Solve for x
    x = 77,019,433.82/12,445.61
  6. Step 6: Final answer
    x = 6,188.48

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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.