Home / 10,115.27-13,960.36-6,339.50

Finding the Fourth Proportional to 10,115.27, 13,960.36 and 6,339.50

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Solution

The fourth proportional to 10,115.27, 13,960.36 and 6,339.50 is: 8,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.27 : 13,960.36 = 6,339.50 : x
  2. Step 2: Convert to fraction form
    10,115.27/13,960.36 = 6,339.50/x
  3. Step 3: Cross multiply
    10,115.27x = 13,960.36 × 6,339.50
  4. Step 4: Simplify right side
    10,115.27x = 88,501,702.22
  5. Step 5: Solve for x
    x = 88,501,702.22/10,115.27
  6. Step 6: Final answer
    x = 8,749.32

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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.