Home / 7,543.80-10,408.32-4,747.68

Finding the Fourth Proportional to 7,543.80, 10,408.32 and 4,747.68

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Solution

The fourth proportional to 7,543.80, 10,408.32 and 4,747.68 is: 6,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.80 : 10,408.32 = 4,747.68 : x
  2. Step 2: Convert to fraction form
    7,543.80/10,408.32 = 4,747.68/x
  3. Step 3: Cross multiply
    7,543.80x = 10,408.32 × 4,747.68
  4. Step 4: Simplify right side
    7,543.80x = 49,415,372.70
  5. Step 5: Solve for x
    x = 49,415,372.70/7,543.80
  6. Step 6: Final answer
    x = 6,550.46

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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.