Home / 8,430.87-11,632.17-5,448.45

Finding the Fourth Proportional to 8,430.87, 11,632.17 and 5,448.45

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Solution

The fourth proportional to 8,430.87, 11,632.17 and 5,448.45 is: 7,517.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.87 : 11,632.17 = 5,448.45 : x
  2. Step 2: Convert to fraction form
    8,430.87/11,632.17 = 5,448.45/x
  3. Step 3: Cross multiply
    8,430.87x = 11,632.17 × 5,448.45
  4. Step 4: Simplify right side
    8,430.87x = 63,377,296.64
  5. Step 5: Solve for x
    x = 63,377,296.64/8,430.87
  6. Step 6: Final answer
    x = 7,517.29

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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.