Home / 10,369.70-15,538.35-8,717.30

Finding the Fourth Proportional to 10,369.70, 15,538.35 and 8,717.30

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Solution

The fourth proportional to 10,369.70, 15,538.35 and 8,717.30 is: 13,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.70 : 15,538.35 = 8,717.30 : x
  2. Step 2: Convert to fraction form
    10,369.70/15,538.35 = 8,717.30/x
  3. Step 3: Cross multiply
    10,369.70x = 15,538.35 × 8,717.30
  4. Step 4: Simplify right side
    10,369.70x = 135,452,458.46
  5. Step 5: Solve for x
    x = 135,452,458.46/10,369.70
  6. Step 6: Final answer
    x = 13,062.33

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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.