Home / 18,302.16-25,257.01-9,918.66

Finding the Fourth Proportional to 18,302.16, 25,257.01 and 9,918.66

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Solution

The fourth proportional to 18,302.16, 25,257.01 and 9,918.66 is: 13,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.16 : 25,257.01 = 9,918.66 : x
  2. Step 2: Convert to fraction form
    18,302.16/25,257.01 = 9,918.66/x
  3. Step 3: Cross multiply
    18,302.16x = 25,257.01 × 9,918.66
  4. Step 4: Simplify right side
    18,302.16x = 250,515,694.81
  5. Step 5: Solve for x
    x = 250,515,694.81/18,302.16
  6. Step 6: Final answer
    x = 13,687.77

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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.