Home / 11,366.87-15,685.16-6,330.90

Finding the Fourth Proportional to 11,366.87, 15,685.16 and 6,330.90

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Solution

The fourth proportional to 11,366.87, 15,685.16 and 6,330.90 is: 8,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.87 : 15,685.16 = 6,330.90 : x
  2. Step 2: Convert to fraction form
    11,366.87/15,685.16 = 6,330.90/x
  3. Step 3: Cross multiply
    11,366.87x = 15,685.16 × 6,330.90
  4. Step 4: Simplify right side
    11,366.87x = 99,301,147.79
  5. Step 5: Solve for x
    x = 99,301,147.79/11,366.87
  6. Step 6: Final answer
    x = 8,736.01

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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.