Home / 11,369.32-15,685.50-6,889.84

Finding the Fourth Proportional to 11,369.32, 15,685.50 and 6,889.84

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Solution

The fourth proportional to 11,369.32, 15,685.50 and 6,889.84 is: 9,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,369.32 : 15,685.50 = 6,889.84 : x
  2. Step 2: Convert to fraction form
    11,369.32/15,685.50 = 6,889.84/x
  3. Step 3: Cross multiply
    11,369.32x = 15,685.50 × 6,889.84
  4. Step 4: Simplify right side
    11,369.32x = 108,070,585.32
  5. Step 5: Solve for x
    x = 108,070,585.32/11,369.32
  6. Step 6: Final answer
    x = 9,505.46

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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.