Home / 13,312.76-18,371.61-7,344.68

Finding the Fourth Proportional to 13,312.76, 18,371.61 and 7,344.68

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Solution

The fourth proportional to 13,312.76, 18,371.61 and 7,344.68 is: 10,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.76 : 18,371.61 = 7,344.68 : x
  2. Step 2: Convert to fraction form
    13,312.76/18,371.61 = 7,344.68/x
  3. Step 3: Cross multiply
    13,312.76x = 18,371.61 × 7,344.68
  4. Step 4: Simplify right side
    13,312.76x = 134,933,504.68
  5. Step 5: Solve for x
    x = 134,933,504.68/13,312.76
  6. Step 6: Final answer
    x = 10,135.66

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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.