Home / 10,368.62-15,542.85-5,158.70

Finding the Fourth Proportional to 10,368.62, 15,542.85 and 5,158.70

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Solution

The fourth proportional to 10,368.62, 15,542.85 and 5,158.70 is: 7,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.62 : 15,542.85 = 5,158.70 : x
  2. Step 2: Convert to fraction form
    10,368.62/15,542.85 = 5,158.70/x
  3. Step 3: Cross multiply
    10,368.62x = 15,542.85 × 5,158.70
  4. Step 4: Simplify right side
    10,368.62x = 80,180,900.30
  5. Step 5: Solve for x
    x = 80,180,900.30/10,368.62
  6. Step 6: Final answer
    x = 7,733.03

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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.