Home / 10,389.16-15,576.90-4,839.52

Finding the Fourth Proportional to 10,389.16, 15,576.90 and 4,839.52

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Solution

The fourth proportional to 10,389.16, 15,576.90 and 4,839.52 is: 7,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.16 : 15,576.90 = 4,839.52 : x
  2. Step 2: Convert to fraction form
    10,389.16/15,576.90 = 4,839.52/x
  3. Step 3: Cross multiply
    10,389.16x = 15,576.90 × 4,839.52
  4. Step 4: Simplify right side
    10,389.16x = 75,384,719.09
  5. Step 5: Solve for x
    x = 75,384,719.09/10,389.16
  6. Step 6: Final answer
    x = 7,256.09

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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.