Home / 13,446.91-18,565.03-8,668.55

Finding the Fourth Proportional to 13,446.91, 18,565.03 and 8,668.55

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Solution

The fourth proportional to 13,446.91, 18,565.03 and 8,668.55 is: 11,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.91 : 18,565.03 = 8,668.55 : x
  2. Step 2: Convert to fraction form
    13,446.91/18,565.03 = 8,668.55/x
  3. Step 3: Cross multiply
    13,446.91x = 18,565.03 × 8,668.55
  4. Step 4: Simplify right side
    13,446.91x = 160,931,948.05
  5. Step 5: Solve for x
    x = 160,931,948.05/13,446.91
  6. Step 6: Final answer
    x = 11,967.95

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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.