Home / 13,397.34-18,491.97-8,358.57

Finding the Fourth Proportional to 13,397.34, 18,491.97 and 8,358.57

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Solution

The fourth proportional to 13,397.34, 18,491.97 and 8,358.57 is: 11,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.34 : 18,491.97 = 8,358.57 : x
  2. Step 2: Convert to fraction form
    13,397.34/18,491.97 = 8,358.57/x
  3. Step 3: Cross multiply
    13,397.34x = 18,491.97 × 8,358.57
  4. Step 4: Simplify right side
    13,397.34x = 154,566,425.68
  5. Step 5: Solve for x
    x = 154,566,425.68/13,397.34
  6. Step 6: Final answer
    x = 11,537.10

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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.