Home / 18,679.32-25,767.45-11,957.72

Finding the Fourth Proportional to 18,679.32, 25,767.45 and 11,957.72

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Solution

The fourth proportional to 18,679.32, 25,767.45 and 11,957.72 is: 16,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.32 : 25,767.45 = 11,957.72 : x
  2. Step 2: Convert to fraction form
    18,679.32/25,767.45 = 11,957.72/x
  3. Step 3: Cross multiply
    18,679.32x = 25,767.45 × 11,957.72
  4. Step 4: Simplify right side
    18,679.32x = 308,119,952.21
  5. Step 5: Solve for x
    x = 308,119,952.21/18,679.32
  6. Step 6: Final answer
    x = 16,495.24

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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.