Home / 7,947.11-11,920.77-2,400.50

Finding the Fourth Proportional to 7,947.11, 11,920.77 and 2,400.50

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Solution

The fourth proportional to 7,947.11, 11,920.77 and 2,400.50 is: 3,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.11 : 11,920.77 = 2,400.50 : x
  2. Step 2: Convert to fraction form
    7,947.11/11,920.77 = 2,400.50/x
  3. Step 3: Cross multiply
    7,947.11x = 11,920.77 × 2,400.50
  4. Step 4: Simplify right side
    7,947.11x = 28,615,838.19
  5. Step 5: Solve for x
    x = 28,615,838.19/7,947.11
  6. Step 6: Final answer
    x = 3,600.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.