Home / 14,143.62-21,215.61-5,710.29

Finding the Fourth Proportional to 14,143.62, 21,215.61 and 5,710.29

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Solution

The fourth proportional to 14,143.62, 21,215.61 and 5,710.29 is: 8,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.62 : 21,215.61 = 5,710.29 : x
  2. Step 2: Convert to fraction form
    14,143.62/21,215.61 = 5,710.29/x
  3. Step 3: Cross multiply
    14,143.62x = 21,215.61 × 5,710.29
  4. Step 4: Simplify right side
    14,143.62x = 121,147,285.63
  5. Step 5: Solve for x
    x = 121,147,285.63/14,143.62
  6. Step 6: Final answer
    x = 8,565.51

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Double scale
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Similar ratio
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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.