Home / 12,565.26-18,848.80-4,245.55

Finding the Fourth Proportional to 12,565.26, 18,848.80 and 4,245.55

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Solution

The fourth proportional to 12,565.26, 18,848.80 and 4,245.55 is: 6,368.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.26 : 18,848.80 = 4,245.55 : x
  2. Step 2: Convert to fraction form
    12,565.26/18,848.80 = 4,245.55/x
  3. Step 3: Cross multiply
    12,565.26x = 18,848.80 × 4,245.55
  4. Step 4: Simplify right side
    12,565.26x = 80,023,481.02
  5. Step 5: Solve for x
    x = 80,023,481.02/12,565.26
  6. Step 6: Final answer
    x = 6,368.63

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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.