Home / 15,513.21-23,279.38-7,191.68

Finding the Fourth Proportional to 15,513.21, 23,279.38 and 7,191.68

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Solution

The fourth proportional to 15,513.21, 23,279.38 and 7,191.68 is: 10,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.21 : 23,279.38 = 7,191.68 : x
  2. Step 2: Convert to fraction form
    15,513.21/23,279.38 = 7,191.68/x
  3. Step 3: Cross multiply
    15,513.21x = 23,279.38 × 7,191.68
  4. Step 4: Simplify right side
    15,513.21x = 167,417,717.18
  5. Step 5: Solve for x
    x = 167,417,717.18/15,513.21
  6. Step 6: Final answer
    x = 10,791.95

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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.