Home / 15,767.13-21,758.58-8,693.94

Finding the Fourth Proportional to 15,767.13, 21,758.58 and 8,693.94

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Solution

The fourth proportional to 15,767.13, 21,758.58 and 8,693.94 is: 11,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.13 : 21,758.58 = 8,693.94 : x
  2. Step 2: Convert to fraction form
    15,767.13/21,758.58 = 8,693.94/x
  3. Step 3: Cross multiply
    15,767.13x = 21,758.58 × 8,693.94
  4. Step 4: Simplify right side
    15,767.13x = 189,167,789.01
  5. Step 5: Solve for x
    x = 189,167,789.01/15,767.13
  6. Step 6: Final answer
    x = 11,997.60

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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.