Home / 18,298.67-25,252.13-9,915.17

Finding the Fourth Proportional to 18,298.67, 25,252.13 and 9,915.17

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Solution

The fourth proportional to 18,298.67, 25,252.13 and 9,915.17 is: 13,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.67 : 25,252.13 = 9,915.17 : x
  2. Step 2: Convert to fraction form
    18,298.67/25,252.13 = 9,915.17/x
  3. Step 3: Cross multiply
    18,298.67x = 25,252.13 × 9,915.17
  4. Step 4: Simplify right side
    18,298.67x = 250,379,060.34
  5. Step 5: Solve for x
    x = 250,379,060.34/18,298.67
  6. Step 6: Final answer
    x = 13,682.91

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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.