Home / 11,397.84-15,729.78-8,041.80

Finding the Fourth Proportional to 11,397.84, 15,729.78 and 8,041.80

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Solution

The fourth proportional to 11,397.84, 15,729.78 and 8,041.80 is: 11,098.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.84 : 15,729.78 = 8,041.80 : x
  2. Step 2: Convert to fraction form
    11,397.84/15,729.78 = 8,041.80/x
  3. Step 3: Cross multiply
    11,397.84x = 15,729.78 × 8,041.80
  4. Step 4: Simplify right side
    11,397.84x = 126,495,744.80
  5. Step 5: Solve for x
    x = 126,495,744.80/11,397.84
  6. Step 6: Final answer
    x = 11,098.22

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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.