Home / 14,939.07-20,615.13-8,223.39

Finding the Fourth Proportional to 14,939.07, 20,615.13 and 8,223.39

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Solution

The fourth proportional to 14,939.07, 20,615.13 and 8,223.39 is: 11,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.07 : 20,615.13 = 8,223.39 : x
  2. Step 2: Convert to fraction form
    14,939.07/20,615.13 = 8,223.39/x
  3. Step 3: Cross multiply
    14,939.07x = 20,615.13 × 8,223.39
  4. Step 4: Simplify right side
    14,939.07x = 169,526,253.89
  5. Step 5: Solve for x
    x = 169,526,253.89/14,939.07
  6. Step 6: Final answer
    x = 11,347.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.