Home / 13,013.49-17,958.61-7,045.11

Finding the Fourth Proportional to 13,013.49, 17,958.61 and 7,045.11

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Solution

The fourth proportional to 13,013.49, 17,958.61 and 7,045.11 is: 9,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.49 : 17,958.61 = 7,045.11 : x
  2. Step 2: Convert to fraction form
    13,013.49/17,958.61 = 7,045.11/x
  3. Step 3: Cross multiply
    13,013.49x = 17,958.61 × 7,045.11
  4. Step 4: Simplify right side
    13,013.49x = 126,520,391.70
  5. Step 5: Solve for x
    x = 126,520,391.70/13,013.49
  6. Step 6: Final answer
    x = 9,722.25

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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.