Home / 7,721.02-10,658.68-5,173.17

Finding the Fourth Proportional to 7,721.02, 10,658.68 and 5,173.17

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Solution

The fourth proportional to 7,721.02, 10,658.68 and 5,173.17 is: 7,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.02 : 10,658.68 = 5,173.17 : x
  2. Step 2: Convert to fraction form
    7,721.02/10,658.68 = 5,173.17/x
  3. Step 3: Cross multiply
    7,721.02x = 10,658.68 × 5,173.17
  4. Step 4: Simplify right side
    7,721.02x = 55,139,110.32
  5. Step 5: Solve for x
    x = 55,139,110.32/7,721.02
  6. Step 6: Final answer
    x = 7,141.43

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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.