Home / 11,492.87-15,859.19-6,456.69

Finding the Fourth Proportional to 11,492.87, 15,859.19 and 6,456.69

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Solution

The fourth proportional to 11,492.87, 15,859.19 and 6,456.69 is: 8,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,492.87 : 15,859.19 = 6,456.69 : x
  2. Step 2: Convert to fraction form
    11,492.87/15,859.19 = 6,456.69/x
  3. Step 3: Cross multiply
    11,492.87x = 15,859.19 × 6,456.69
  4. Step 4: Simplify right side
    11,492.87x = 102,397,900.67
  5. Step 5: Solve for x
    x = 102,397,900.67/11,492.87
  6. Step 6: Final answer
    x = 8,909.69

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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.