Home / 12,447.50-18,669.24-4,127.18

Finding the Fourth Proportional to 12,447.50, 18,669.24 and 4,127.18

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Solution

The fourth proportional to 12,447.50, 18,669.24 and 4,127.18 is: 6,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.50 : 18,669.24 = 4,127.18 : x
  2. Step 2: Convert to fraction form
    12,447.50/18,669.24 = 4,127.18/x
  3. Step 3: Cross multiply
    12,447.50x = 18,669.24 × 4,127.18
  4. Step 4: Simplify right side
    12,447.50x = 77,051,220.60
  5. Step 5: Solve for x
    x = 77,051,220.60/12,447.50
  6. Step 6: Final answer
    x = 6,190.10

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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.