Home / 19,737.56-27,237.86-11,239.30

Finding the Fourth Proportional to 19,737.56, 27,237.86 and 11,239.30

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Solution

The fourth proportional to 19,737.56, 27,237.86 and 11,239.30 is: 15,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,737.56 : 27,237.86 = 11,239.30 : x
  2. Step 2: Convert to fraction form
    19,737.56/27,237.86 = 11,239.30/x
  3. Step 3: Cross multiply
    19,737.56x = 27,237.86 × 11,239.30
  4. Step 4: Simplify right side
    19,737.56x = 306,134,479.90
  5. Step 5: Solve for x
    x = 306,134,479.90/19,737.56
  6. Step 6: Final answer
    x = 15,510.25

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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.