Home / 7,578.48-10,455.36-4,744.70

Finding the Fourth Proportional to 7,578.48, 10,455.36 and 4,744.70

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Solution

The fourth proportional to 7,578.48, 10,455.36 and 4,744.70 is: 6,545.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.48 : 10,455.36 = 4,744.70 : x
  2. Step 2: Convert to fraction form
    7,578.48/10,455.36 = 4,744.70/x
  3. Step 3: Cross multiply
    7,578.48x = 10,455.36 × 4,744.70
  4. Step 4: Simplify right side
    7,578.48x = 49,607,546.59
  5. Step 5: Solve for x
    x = 49,607,546.59/7,578.48
  6. Step 6: Final answer
    x = 6,545.84

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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.