Home / 11,152.08-15,390-6,962.76

Finding the Fourth Proportional to 11,152.08, 15,390 and 6,962.76

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Solution

The fourth proportional to 11,152.08, 15,390 and 6,962.76 is: 9,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.08 : 15,390 = 6,962.76 : x
  2. Step 2: Convert to fraction form
    11,152.08/15,390 = 6,962.76/x
  3. Step 3: Cross multiply
    11,152.08x = 15,390 × 6,962.76
  4. Step 4: Simplify right side
    11,152.08x = 107,156,876.40
  5. Step 5: Solve for x
    x = 107,156,876.40/11,152.08
  6. Step 6: Final answer
    x = 9,608.69

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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.