Home / 11,581.08-15,981.75-6,275.82

Finding the Fourth Proportional to 11,581.08, 15,981.75 and 6,275.82

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Solution

The fourth proportional to 11,581.08, 15,981.75 and 6,275.82 is: 8,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.08 : 15,981.75 = 6,275.82 : x
  2. Step 2: Convert to fraction form
    11,581.08/15,981.75 = 6,275.82/x
  3. Step 3: Cross multiply
    11,581.08x = 15,981.75 × 6,275.82
  4. Step 4: Simplify right side
    11,581.08x = 100,298,586.29
  5. Step 5: Solve for x
    x = 100,298,586.29/11,581.08
  6. Step 6: Final answer
    x = 8,660.56

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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.