Home / 11,077.32-15,285.78-6,360.60

Finding the Fourth Proportional to 11,077.32, 15,285.78 and 6,360.60

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Solution

The fourth proportional to 11,077.32, 15,285.78 and 6,360.60 is: 8,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.32 : 15,285.78 = 6,360.60 : x
  2. Step 2: Convert to fraction form
    11,077.32/15,285.78 = 6,360.60/x
  3. Step 3: Cross multiply
    11,077.32x = 15,285.78 × 6,360.60
  4. Step 4: Simplify right side
    11,077.32x = 97,226,732.27
  5. Step 5: Solve for x
    x = 97,226,732.27/11,077.32
  6. Step 6: Final answer
    x = 8,777.10

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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.