Home / 14,423.38-19,904.40-8,135.75

Finding the Fourth Proportional to 14,423.38, 19,904.40 and 8,135.75

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Solution

The fourth proportional to 14,423.38, 19,904.40 and 8,135.75 is: 11,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.38 : 19,904.40 = 8,135.75 : x
  2. Step 2: Convert to fraction form
    14,423.38/19,904.40 = 8,135.75/x
  3. Step 3: Cross multiply
    14,423.38x = 19,904.40 × 8,135.75
  4. Step 4: Simplify right side
    14,423.38x = 161,937,272.06
  5. Step 5: Solve for x
    x = 161,937,272.06/14,423.38
  6. Step 6: Final answer
    x = 11,227.42

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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.