Home / 10,877.32-15,015-8,045.02

Finding the Fourth Proportional to 10,877.32, 15,015 and 8,045.02

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Solution

The fourth proportional to 10,877.32, 15,015 and 8,045.02 is: 11,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.32 : 15,015 = 8,045.02 : x
  2. Step 2: Convert to fraction form
    10,877.32/15,015 = 8,045.02/x
  3. Step 3: Cross multiply
    10,877.32x = 15,015 × 8,045.02
  4. Step 4: Simplify right side
    10,877.32x = 120,795,975.30
  5. Step 5: Solve for x
    x = 120,795,975.30/10,877.32
  6. Step 6: Final answer
    x = 11,105.31

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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.