Home / 10,140.84-13,992.96-5,664.36

Finding the Fourth Proportional to 10,140.84, 13,992.96 and 5,664.36

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Solution

The fourth proportional to 10,140.84, 13,992.96 and 5,664.36 is: 7,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.84 : 13,992.96 = 5,664.36 : x
  2. Step 2: Convert to fraction form
    10,140.84/13,992.96 = 5,664.36/x
  3. Step 3: Cross multiply
    10,140.84x = 13,992.96 × 5,664.36
  4. Step 4: Simplify right side
    10,140.84x = 79,261,162.91
  5. Step 5: Solve for x
    x = 79,261,162.91/10,140.84
  6. Step 6: Final answer
    x = 7,816.04

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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.