Home / 11,113.96-15,337.18-6,078.16

Finding the Fourth Proportional to 11,113.96, 15,337.18 and 6,078.16

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Solution

The fourth proportional to 11,113.96, 15,337.18 and 6,078.16 is: 8,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.96 : 15,337.18 = 6,078.16 : x
  2. Step 2: Convert to fraction form
    11,113.96/15,337.18 = 6,078.16/x
  3. Step 3: Cross multiply
    11,113.96x = 15,337.18 × 6,078.16
  4. Step 4: Simplify right side
    11,113.96x = 93,221,833.99
  5. Step 5: Solve for x
    x = 93,221,833.99/11,113.96
  6. Step 6: Final answer
    x = 8,387.81

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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.