Home / 10,302.19-15,428.50-9,785.41

Finding the Fourth Proportional to 10,302.19, 15,428.50 and 9,785.41

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Solution

The fourth proportional to 10,302.19, 15,428.50 and 9,785.41 is: 14,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,302.19 : 15,428.50 = 9,785.41 : x
  2. Step 2: Convert to fraction form
    10,302.19/15,428.50 = 9,785.41/x
  3. Step 3: Cross multiply
    10,302.19x = 15,428.50 × 9,785.41
  4. Step 4: Simplify right side
    10,302.19x = 150,974,198.19
  5. Step 5: Solve for x
    x = 150,974,198.19/10,302.19
  6. Step 6: Final answer
    x = 14,654.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.