Home / 18,626.88-25,705.08-10,668.72

Finding the Fourth Proportional to 18,626.88, 25,705.08 and 10,668.72

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Solution

The fourth proportional to 18,626.88, 25,705.08 and 10,668.72 is: 14,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.88 : 25,705.08 = 10,668.72 : x
  2. Step 2: Convert to fraction form
    18,626.88/25,705.08 = 10,668.72/x
  3. Step 3: Cross multiply
    18,626.88x = 25,705.08 × 10,668.72
  4. Step 4: Simplify right side
    18,626.88x = 274,240,301.10
  5. Step 5: Solve for x
    x = 274,240,301.10/18,626.88
  6. Step 6: Final answer
    x = 14,722.83

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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.