Home / 5,501.40-8,255.61-5,136.90

Finding the Fourth Proportional to 5,501.40, 8,255.61 and 5,136.90

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Solution

The fourth proportional to 5,501.40, 8,255.61 and 5,136.90 is: 7,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,501.40 : 8,255.61 = 5,136.90 : x
  2. Step 2: Convert to fraction form
    5,501.40/8,255.61 = 5,136.90/x
  3. Step 3: Cross multiply
    5,501.40x = 8,255.61 × 5,136.90
  4. Step 4: Simplify right side
    5,501.40x = 42,408,243.01
  5. Step 5: Solve for x
    x = 42,408,243.01/5,501.40
  6. Step 6: Final answer
    x = 7,708.63

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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.