Home / 7,355.50-10,143.60-4,839.75

Finding the Fourth Proportional to 7,355.50, 10,143.60 and 4,839.75

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Solution

The fourth proportional to 7,355.50, 10,143.60 and 4,839.75 is: 6,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.50 : 10,143.60 = 4,839.75 : x
  2. Step 2: Convert to fraction form
    7,355.50/10,143.60 = 4,839.75/x
  3. Step 3: Cross multiply
    7,355.50x = 10,143.60 × 4,839.75
  4. Step 4: Simplify right side
    7,355.50x = 49,092,488.10
  5. Step 5: Solve for x
    x = 49,092,488.10/7,355.50
  6. Step 6: Final answer
    x = 6,674.26

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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.