Home / 15,767.04-21,758.38-8,693.31

Finding the Fourth Proportional to 15,767.04, 21,758.38 and 8,693.31

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Solution

The fourth proportional to 15,767.04, 21,758.38 and 8,693.31 is: 11,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.04 : 21,758.38 = 8,693.31 : x
  2. Step 2: Convert to fraction form
    15,767.04/21,758.38 = 8,693.31/x
  3. Step 3: Cross multiply
    15,767.04x = 21,758.38 × 8,693.31
  4. Step 4: Simplify right side
    15,767.04x = 189,152,342.44
  5. Step 5: Solve for x
    x = 189,152,342.44/15,767.04
  6. Step 6: Final answer
    x = 11,996.69

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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.