Home / 15,327.66-21,141.90-9,276.42

Finding the Fourth Proportional to 15,327.66, 21,141.90 and 9,276.42

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Solution

The fourth proportional to 15,327.66, 21,141.90 and 9,276.42 is: 12,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.66 : 21,141.90 = 9,276.42 : x
  2. Step 2: Convert to fraction form
    15,327.66/21,141.90 = 9,276.42/x
  3. Step 3: Cross multiply
    15,327.66x = 21,141.90 × 9,276.42
  4. Step 4: Simplify right side
    15,327.66x = 196,121,144.00
  5. Step 5: Solve for x
    x = 196,121,144.00/15,327.66
  6. Step 6: Final answer
    x = 12,795.24

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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.