Home / 10,205.04-14,083.76-5,728.51

Finding the Fourth Proportional to 10,205.04, 14,083.76 and 5,728.51

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Solution

The fourth proportional to 10,205.04, 14,083.76 and 5,728.51 is: 7,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.04 : 14,083.76 = 5,728.51 : x
  2. Step 2: Convert to fraction form
    10,205.04/14,083.76 = 5,728.51/x
  3. Step 3: Cross multiply
    10,205.04x = 14,083.76 × 5,728.51
  4. Step 4: Simplify right side
    10,205.04x = 80,678,860.94
  5. Step 5: Solve for x
    x = 80,678,860.94/10,205.04
  6. Step 6: Final answer
    x = 7,905.79

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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.