Home / 18,814.89-25,964.84-10,317.78

Finding the Fourth Proportional to 18,814.89, 25,964.84 and 10,317.78

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Solution

The fourth proportional to 18,814.89, 25,964.84 and 10,317.78 is: 14,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.89 : 25,964.84 = 10,317.78 : x
  2. Step 2: Convert to fraction form
    18,814.89/25,964.84 = 10,317.78/x
  3. Step 3: Cross multiply
    18,814.89x = 25,964.84 × 10,317.78
  4. Step 4: Simplify right side
    18,814.89x = 267,899,506.86
  5. Step 5: Solve for x
    x = 267,899,506.86/18,814.89
  6. Step 6: Final answer
    x = 14,238.70

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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.