Home / 8,901.45-12,278.75-5,544.81

Finding the Fourth Proportional to 8,901.45, 12,278.75 and 5,544.81

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Solution

The fourth proportional to 8,901.45, 12,278.75 and 5,544.81 is: 7,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.45 : 12,278.75 = 5,544.81 : x
  2. Step 2: Convert to fraction form
    8,901.45/12,278.75 = 5,544.81/x
  3. Step 3: Cross multiply
    8,901.45x = 12,278.75 × 5,544.81
  4. Step 4: Simplify right side
    8,901.45x = 68,083,308.06
  5. Step 5: Solve for x
    x = 68,083,308.06/8,901.45
  6. Step 6: Final answer
    x = 7,648.56

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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.