Home / 10,909.64-15,055.89-6,436.01

Finding the Fourth Proportional to 10,909.64, 15,055.89 and 6,436.01

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Solution

The fourth proportional to 10,909.64, 15,055.89 and 6,436.01 is: 8,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.64 : 15,055.89 = 6,436.01 : x
  2. Step 2: Convert to fraction form
    10,909.64/15,055.89 = 6,436.01/x
  3. Step 3: Cross multiply
    10,909.64x = 15,055.89 × 6,436.01
  4. Step 4: Simplify right side
    10,909.64x = 96,899,858.60
  5. Step 5: Solve for x
    x = 96,899,858.60/10,909.64
  6. Step 6: Final answer
    x = 8,882.04

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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.