Home / 19,398.40-26,773.28-11,440.16

Finding the Fourth Proportional to 19,398.40, 26,773.28 and 11,440.16

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Solution

The fourth proportional to 19,398.40, 26,773.28 and 11,440.16 is: 15,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.40 : 26,773.28 = 11,440.16 : x
  2. Step 2: Convert to fraction form
    19,398.40/26,773.28 = 11,440.16/x
  3. Step 3: Cross multiply
    19,398.40x = 26,773.28 × 11,440.16
  4. Step 4: Simplify right side
    19,398.40x = 306,290,606.92
  5. Step 5: Solve for x
    x = 306,290,606.92/19,398.40
  6. Step 6: Final answer
    x = 15,789.48

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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.