Home / 12,347.10-18,516.26-4,447.49

Finding the Fourth Proportional to 12,347.10, 18,516.26 and 4,447.49

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Solution

The fourth proportional to 12,347.10, 18,516.26 and 4,447.49 is: 6,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.10 : 18,516.26 = 4,447.49 : x
  2. Step 2: Convert to fraction form
    12,347.10/18,516.26 = 4,447.49/x
  3. Step 3: Cross multiply
    12,347.10x = 18,516.26 × 4,447.49
  4. Step 4: Simplify right side
    12,347.10x = 82,350,870.07
  5. Step 5: Solve for x
    x = 82,350,870.07/12,347.10
  6. Step 6: Final answer
    x = 6,669.66

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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.