Home / 11,113.30-15,338.25-6,400.31

Finding the Fourth Proportional to 11,113.30, 15,338.25 and 6,400.31

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Solution

The fourth proportional to 11,113.30, 15,338.25 and 6,400.31 is: 8,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.30 : 15,338.25 = 6,400.31 : x
  2. Step 2: Convert to fraction form
    11,113.30/15,338.25 = 6,400.31/x
  3. Step 3: Cross multiply
    11,113.30x = 15,338.25 × 6,400.31
  4. Step 4: Simplify right side
    11,113.30x = 98,169,522.86
  5. Step 5: Solve for x
    x = 98,169,522.86/11,113.30
  6. Step 6: Final answer
    x = 8,833.52

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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.