Home / 12,447.61-18,674.31-4,127.02

Finding the Fourth Proportional to 12,447.61, 18,674.31 and 4,127.02

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Solution

The fourth proportional to 12,447.61, 18,674.31 and 4,127.02 is: 6,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.61 : 18,674.31 = 4,127.02 : x
  2. Step 2: Convert to fraction form
    12,447.61/18,674.31 = 4,127.02/x
  3. Step 3: Cross multiply
    12,447.61x = 18,674.31 × 4,127.02
  4. Step 4: Simplify right side
    12,447.61x = 77,069,250.86
  5. Step 5: Solve for x
    x = 77,069,250.86/12,447.61
  6. Step 6: Final answer
    x = 6,191.49

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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.