Home / 10,898.76-15,039.84-6,118.20

Finding the Fourth Proportional to 10,898.76, 15,039.84 and 6,118.20

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Solution

The fourth proportional to 10,898.76, 15,039.84 and 6,118.20 is: 8,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.76 : 15,039.84 = 6,118.20 : x
  2. Step 2: Convert to fraction form
    10,898.76/15,039.84 = 6,118.20/x
  3. Step 3: Cross multiply
    10,898.76x = 15,039.84 × 6,118.20
  4. Step 4: Simplify right side
    10,898.76x = 92,016,749.09
  5. Step 5: Solve for x
    x = 92,016,749.09/10,898.76
  6. Step 6: Final answer
    x = 8,442.86

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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.