Home / 13,316.76-18,384.30-9,704.70

Finding the Fourth Proportional to 13,316.76, 18,384.30 and 9,704.70

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Solution

The fourth proportional to 13,316.76, 18,384.30 and 9,704.70 is: 13,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.76 : 18,384.30 = 9,704.70 : x
  2. Step 2: Convert to fraction form
    13,316.76/18,384.30 = 9,704.70/x
  3. Step 3: Cross multiply
    13,316.76x = 18,384.30 × 9,704.70
  4. Step 4: Simplify right side
    13,316.76x = 178,414,116.21
  5. Step 5: Solve for x
    x = 178,414,116.21/13,316.76
  6. Step 6: Final answer
    x = 13,397.71

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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.