Home / 11,113.56-15,335.01-6,396.93

Finding the Fourth Proportional to 11,113.56, 15,335.01 and 6,396.93

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Solution

The fourth proportional to 11,113.56, 15,335.01 and 6,396.93 is: 8,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.56 : 15,335.01 = 6,396.93 : x
  2. Step 2: Convert to fraction form
    11,113.56/15,335.01 = 6,396.93/x
  3. Step 3: Cross multiply
    11,113.56x = 15,335.01 × 6,396.93
  4. Step 4: Simplify right side
    11,113.56x = 98,096,985.52
  5. Step 5: Solve for x
    x = 98,096,985.52/11,113.56
  6. Step 6: Final answer
    x = 8,826.78

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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.