Home / 7,647.66-10,553.85-4,290.53

Finding the Fourth Proportional to 7,647.66, 10,553.85 and 4,290.53

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Solution

The fourth proportional to 7,647.66, 10,553.85 and 4,290.53 is: 5,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.66 : 10,553.85 = 4,290.53 : x
  2. Step 2: Convert to fraction form
    7,647.66/10,553.85 = 4,290.53/x
  3. Step 3: Cross multiply
    7,647.66x = 10,553.85 × 4,290.53
  4. Step 4: Simplify right side
    7,647.66x = 45,281,557.27
  5. Step 5: Solve for x
    x = 45,281,557.27/7,647.66
  6. Step 6: Final answer
    x = 5,920.97

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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.