Home / 11,215.13-15,476.87-6,502.14

Finding the Fourth Proportional to 11,215.13, 15,476.87 and 6,502.14

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Solution

The fourth proportional to 11,215.13, 15,476.87 and 6,502.14 is: 8,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.13 : 15,476.87 = 6,502.14 : x
  2. Step 2: Convert to fraction form
    11,215.13/15,476.87 = 6,502.14/x
  3. Step 3: Cross multiply
    11,215.13x = 15,476.87 × 6,502.14
  4. Step 4: Simplify right side
    11,215.13x = 100,632,775.50
  5. Step 5: Solve for x
    x = 100,632,775.50/11,215.13
  6. Step 6: Final answer
    x = 8,972.95

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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.