Home / 10,133.78-13,982.91-5,657.36

Finding the Fourth Proportional to 10,133.78, 13,982.91 and 5,657.36

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Solution

The fourth proportional to 10,133.78, 13,982.91 and 5,657.36 is: 7,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.78 : 13,982.91 = 5,657.36 : x
  2. Step 2: Convert to fraction form
    10,133.78/13,982.91 = 5,657.36/x
  3. Step 3: Cross multiply
    10,133.78x = 13,982.91 × 5,657.36
  4. Step 4: Simplify right side
    10,133.78x = 79,106,355.72
  5. Step 5: Solve for x
    x = 79,106,355.72/10,133.78
  6. Step 6: Final answer
    x = 7,806.20

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1.5x scale

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.