Home / 10,142.09-13,995.58-5,664.95

Finding the Fourth Proportional to 10,142.09, 13,995.58 and 5,664.95

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Solution

The fourth proportional to 10,142.09, 13,995.58 and 5,664.95 is: 7,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.09 : 13,995.58 = 5,664.95 : x
  2. Step 2: Convert to fraction form
    10,142.09/13,995.58 = 5,664.95/x
  3. Step 3: Cross multiply
    10,142.09x = 13,995.58 × 5,664.95
  4. Step 4: Simplify right side
    10,142.09x = 79,284,176.78
  5. Step 5: Solve for x
    x = 79,284,176.78/10,142.09
  6. Step 6: Final answer
    x = 7,817.34

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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.