Home / 7,358.11-10,153.91-4,000.80

Finding the Fourth Proportional to 7,358.11, 10,153.91 and 4,000.80

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Solution

The fourth proportional to 7,358.11, 10,153.91 and 4,000.80 is: 5,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.11 : 10,153.91 = 4,000.80 : x
  2. Step 2: Convert to fraction form
    7,358.11/10,153.91 = 4,000.80/x
  3. Step 3: Cross multiply
    7,358.11x = 10,153.91 × 4,000.80
  4. Step 4: Simplify right side
    7,358.11x = 40,623,778.51
  5. Step 5: Solve for x
    x = 40,623,778.51/7,358.11
  6. Step 6: Final answer
    x = 5,520.96

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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.