Home / 10,161.54-14,022.54-5,685.78

Finding the Fourth Proportional to 10,161.54, 14,022.54 and 5,685.78

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Solution

The fourth proportional to 10,161.54, 14,022.54 and 5,685.78 is: 7,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.54 : 14,022.54 = 5,685.78 : x
  2. Step 2: Convert to fraction form
    10,161.54/14,022.54 = 5,685.78/x
  3. Step 3: Cross multiply
    10,161.54x = 14,022.54 × 5,685.78
  4. Step 4: Simplify right side
    10,161.54x = 79,729,077.48
  5. Step 5: Solve for x
    x = 79,729,077.48/10,161.54
  6. Step 6: Final answer
    x = 7,846.16

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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.