Home / 19,278.90-26,603.42-11,724.20

Finding the Fourth Proportional to 19,278.90, 26,603.42 and 11,724.20

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Solution

The fourth proportional to 19,278.90, 26,603.42 and 11,724.20 is: 16,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.90 : 26,603.42 = 11,724.20 : x
  2. Step 2: Convert to fraction form
    19,278.90/26,603.42 = 11,724.20/x
  3. Step 3: Cross multiply
    19,278.90x = 26,603.42 × 11,724.20
  4. Step 4: Simplify right side
    19,278.90x = 311,903,816.76
  5. Step 5: Solve for x
    x = 311,903,816.76/19,278.90
  6. Step 6: Final answer
    x = 16,178.51

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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.