Home / 10,197.12-14,072.16-5,721.84

Finding the Fourth Proportional to 10,197.12, 14,072.16 and 5,721.84

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Solution

The fourth proportional to 10,197.12, 14,072.16 and 5,721.84 is: 7,896.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,197.12 : 14,072.16 = 5,721.84 : x
  2. Step 2: Convert to fraction form
    10,197.12/14,072.16 = 5,721.84/x
  3. Step 3: Cross multiply
    10,197.12x = 14,072.16 × 5,721.84
  4. Step 4: Simplify right side
    10,197.12x = 80,518,647.97
  5. Step 5: Solve for x
    x = 80,518,647.97/10,197.12
  6. Step 6: Final answer
    x = 7,896.21

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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.