Home / 10,133.38-13,983.79-5,657

Finding the Fourth Proportional to 10,133.38, 13,983.79 and 5,657

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Solution

The fourth proportional to 10,133.38, 13,983.79 and 5,657 is: 7,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.38 : 13,983.79 = 5,657 : x
  2. Step 2: Convert to fraction form
    10,133.38/13,983.79 = 5,657/x
  3. Step 3: Cross multiply
    10,133.38x = 13,983.79 × 5,657
  4. Step 4: Simplify right side
    10,133.38x = 79,106,271.75
  5. Step 5: Solve for x
    x = 79,106,271.75/10,133.38
  6. Step 6: Final answer
    x = 7,806.51

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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.