Home / 12,039.89-16,615.10-6,734.70

Finding the Fourth Proportional to 12,039.89, 16,615.10 and 6,734.70

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Solution

The fourth proportional to 12,039.89, 16,615.10 and 6,734.70 is: 9,293.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.89 : 16,615.10 = 6,734.70 : x
  2. Step 2: Convert to fraction form
    12,039.89/16,615.10 = 6,734.70/x
  3. Step 3: Cross multiply
    12,039.89x = 16,615.10 × 6,734.70
  4. Step 4: Simplify right side
    12,039.89x = 111,897,730.81
  5. Step 5: Solve for x
    x = 111,897,730.81/12,039.89
  6. Step 6: Final answer
    x = 9,293.92

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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.