Home / 12,721.23-17,554.43-7,056.23

Finding the Fourth Proportional to 12,721.23, 17,554.43 and 7,056.23

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Solution

The fourth proportional to 12,721.23, 17,554.43 and 7,056.23 is: 9,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.23 : 17,554.43 = 7,056.23 : x
  2. Step 2: Convert to fraction form
    12,721.23/17,554.43 = 7,056.23/x
  3. Step 3: Cross multiply
    12,721.23x = 17,554.43 × 7,056.23
  4. Step 4: Simplify right side
    12,721.23x = 123,867,972.55
  5. Step 5: Solve for x
    x = 123,867,972.55/12,721.23
  6. Step 6: Final answer
    x = 9,737.11

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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.