Home / 18,302.34-25,257.12-9,918.84

Finding the Fourth Proportional to 18,302.34, 25,257.12 and 9,918.84

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Solution

The fourth proportional to 18,302.34, 25,257.12 and 9,918.84 is: 13,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.34 : 25,257.12 = 9,918.84 : x
  2. Step 2: Convert to fraction form
    18,302.34/25,257.12 = 9,918.84/x
  3. Step 3: Cross multiply
    18,302.34x = 25,257.12 × 9,918.84
  4. Step 4: Simplify right side
    18,302.34x = 250,521,332.14
  5. Step 5: Solve for x
    x = 250,521,332.14/18,302.34
  6. Step 6: Final answer
    x = 13,687.94

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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.