Home / 11,162.07-15,403.86-6,126.78

Finding the Fourth Proportional to 11,162.07, 15,403.86 and 6,126.78

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Solution

The fourth proportional to 11,162.07, 15,403.86 and 6,126.78 is: 8,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.07 : 15,403.86 = 6,126.78 : x
  2. Step 2: Convert to fraction form
    11,162.07/15,403.86 = 6,126.78/x
  3. Step 3: Cross multiply
    11,162.07x = 15,403.86 × 6,126.78
  4. Step 4: Simplify right side
    11,162.07x = 94,376,061.37
  5. Step 5: Solve for x
    x = 94,376,061.37/11,162.07
  6. Step 6: Final answer
    x = 8,455.07

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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.