Home / 10,938.97-16,394.59-6,988.71

Finding the Fourth Proportional to 10,938.97, 16,394.59 and 6,988.71

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Solution

The fourth proportional to 10,938.97, 16,394.59 and 6,988.71 is: 10,474.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.97 : 16,394.59 = 6,988.71 : x
  2. Step 2: Convert to fraction form
    10,938.97/16,394.59 = 6,988.71/x
  3. Step 3: Cross multiply
    10,938.97x = 16,394.59 × 6,988.71
  4. Step 4: Simplify right side
    10,938.97x = 114,577,035.08
  5. Step 5: Solve for x
    x = 114,577,035.08/10,938.97
  6. Step 6: Final answer
    x = 10,474.21

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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.