Home / 19,444.17-26,811.75-13,145.61

Finding the Fourth Proportional to 19,444.17, 26,811.75 and 13,145.61

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Solution

The fourth proportional to 19,444.17, 26,811.75 and 13,145.61 is: 18,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444.17 : 26,811.75 = 13,145.61 : x
  2. Step 2: Convert to fraction form
    19,444.17/26,811.75 = 13,145.61/x
  3. Step 3: Cross multiply
    19,444.17x = 26,811.75 × 13,145.61
  4. Step 4: Simplify right side
    19,444.17x = 352,456,808.92
  5. Step 5: Solve for x
    x = 352,456,808.92/19,444.17
  6. Step 6: Final answer
    x = 18,126.61

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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.