Home / 18,299.13-25,252.74-9,915.63

Finding the Fourth Proportional to 18,299.13, 25,252.74 and 9,915.63

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Solution

The fourth proportional to 18,299.13, 25,252.74 and 9,915.63 is: 13,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.13 : 25,252.74 = 9,915.63 : x
  2. Step 2: Convert to fraction form
    18,299.13/25,252.74 = 9,915.63/x
  3. Step 3: Cross multiply
    18,299.13x = 25,252.74 × 9,915.63
  4. Step 4: Simplify right side
    18,299.13x = 250,396,826.33
  5. Step 5: Solve for x
    x = 250,396,826.33/18,299.13
  6. Step 6: Final answer
    x = 13,683.54

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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.