Home / 10,389.29-15,575.24-4,839.77

Finding the Fourth Proportional to 10,389.29, 15,575.24 and 4,839.77

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Solution

The fourth proportional to 10,389.29, 15,575.24 and 4,839.77 is: 7,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.29 : 15,575.24 = 4,839.77 : x
  2. Step 2: Convert to fraction form
    10,389.29/15,575.24 = 4,839.77/x
  3. Step 3: Cross multiply
    10,389.29x = 15,575.24 × 4,839.77
  4. Step 4: Simplify right side
    10,389.29x = 75,380,477.22
  5. Step 5: Solve for x
    x = 75,380,477.22/10,389.29
  6. Step 6: Final answer
    x = 7,255.60

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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.