Home / 14,143.28-21,207.58-5,821.74

Finding the Fourth Proportional to 14,143.28, 21,207.58 and 5,821.74

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Solution

The fourth proportional to 14,143.28, 21,207.58 and 5,821.74 is: 8,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.28 : 21,207.58 = 5,821.74 : x
  2. Step 2: Convert to fraction form
    14,143.28/21,207.58 = 5,821.74/x
  3. Step 3: Cross multiply
    14,143.28x = 21,207.58 × 5,821.74
  4. Step 4: Simplify right side
    14,143.28x = 123,465,002.23
  5. Step 5: Solve for x
    x = 123,465,002.23/14,143.28
  6. Step 6: Final answer
    x = 8,729.59

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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.