Home / 10,638.32-15,935.88-5,370.08

Finding the Fourth Proportional to 10,638.32, 15,935.88 and 5,370.08

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Solution

The fourth proportional to 10,638.32, 15,935.88 and 5,370.08 is: 8,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.32 : 15,935.88 = 5,370.08 : x
  2. Step 2: Convert to fraction form
    10,638.32/15,935.88 = 5,370.08/x
  3. Step 3: Cross multiply
    10,638.32x = 15,935.88 × 5,370.08
  4. Step 4: Simplify right side
    10,638.32x = 85,576,950.47
  5. Step 5: Solve for x
    x = 85,576,950.47/10,638.32
  6. Step 6: Final answer
    x = 8,044.22

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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.