Home / 10,347-14,278.91-5,631.27

Finding the Fourth Proportional to 10,347, 14,278.91 and 5,631.27

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Solution

The fourth proportional to 10,347, 14,278.91 and 5,631.27 is: 7,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347 : 14,278.91 = 5,631.27 : x
  2. Step 2: Convert to fraction form
    10,347/14,278.91 = 5,631.27/x
  3. Step 3: Cross multiply
    10,347x = 14,278.91 × 5,631.27
  4. Step 4: Simplify right side
    10,347x = 80,408,369.36
  5. Step 5: Solve for x
    x = 80,408,369.36/10,347
  6. Step 6: Final answer
    x = 7,771.18

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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.