Home / 11,718.13-17,565.91-4,318.55

Finding the Fourth Proportional to 11,718.13, 17,565.91 and 4,318.55

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Solution

The fourth proportional to 11,718.13, 17,565.91 and 4,318.55 is: 6,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.13 : 17,565.91 = 4,318.55 : x
  2. Step 2: Convert to fraction form
    11,718.13/17,565.91 = 4,318.55/x
  3. Step 3: Cross multiply
    11,718.13x = 17,565.91 × 4,318.55
  4. Step 4: Simplify right side
    11,718.13x = 75,859,260.63
  5. Step 5: Solve for x
    x = 75,859,260.63/11,718.13
  6. Step 6: Final answer
    x = 6,473.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.