Home / 15,454.53-21,327.01-8,739.91

Finding the Fourth Proportional to 15,454.53, 21,327.01 and 8,739.91

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Solution

The fourth proportional to 15,454.53, 21,327.01 and 8,739.91 is: 12,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.53 : 21,327.01 = 8,739.91 : x
  2. Step 2: Convert to fraction form
    15,454.53/21,327.01 = 8,739.91/x
  3. Step 3: Cross multiply
    15,454.53x = 21,327.01 × 8,739.91
  4. Step 4: Simplify right side
    15,454.53x = 186,396,195.06
  5. Step 5: Solve for x
    x = 186,396,195.06/15,454.53
  6. Step 6: Final answer
    x = 12,060.94

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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.