Home / 12,721.56-17,543.64-9,737.52

Finding the Fourth Proportional to 12,721.56, 17,543.64 and 9,737.52

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Solution

The fourth proportional to 12,721.56, 17,543.64 and 9,737.52 is: 13,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.56 : 17,543.64 = 9,737.52 : x
  2. Step 2: Convert to fraction form
    12,721.56/17,543.64 = 9,737.52/x
  3. Step 3: Cross multiply
    12,721.56x = 17,543.64 × 9,737.52
  4. Step 4: Simplify right side
    12,721.56x = 170,831,545.37
  5. Step 5: Solve for x
    x = 170,831,545.37/12,721.56
  6. Step 6: Final answer
    x = 13,428.51

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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.