Home / 9,320.87-12,867-6,135.84

Finding the Fourth Proportional to 9,320.87, 12,867 and 6,135.84

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Solution

The fourth proportional to 9,320.87, 12,867 and 6,135.84 is: 8,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.87 : 12,867 = 6,135.84 : x
  2. Step 2: Convert to fraction form
    9,320.87/12,867 = 6,135.84/x
  3. Step 3: Cross multiply
    9,320.87x = 12,867 × 6,135.84
  4. Step 4: Simplify right side
    9,320.87x = 78,949,853.28
  5. Step 5: Solve for x
    x = 78,949,853.28/9,320.87
  6. Step 6: Final answer
    x = 8,470.22

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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.