Home / 10,914.52-15,063.85-6,439.38

Finding the Fourth Proportional to 10,914.52, 15,063.85 and 6,439.38

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Solution

The fourth proportional to 10,914.52, 15,063.85 and 6,439.38 is: 8,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.52 : 15,063.85 = 6,439.38 : x
  2. Step 2: Convert to fraction form
    10,914.52/15,063.85 = 6,439.38/x
  3. Step 3: Cross multiply
    10,914.52x = 15,063.85 × 6,439.38
  4. Step 4: Simplify right side
    10,914.52x = 97,001,779.09
  5. Step 5: Solve for x
    x = 97,001,779.09/10,914.52
  6. Step 6: Final answer
    x = 8,887.41

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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.