Home / 19,161.71-26,443.66-10,664.40

Finding the Fourth Proportional to 19,161.71, 26,443.66 and 10,664.40

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Solution

The fourth proportional to 19,161.71, 26,443.66 and 10,664.40 is: 14,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.71 : 26,443.66 = 10,664.40 : x
  2. Step 2: Convert to fraction form
    19,161.71/26,443.66 = 10,664.40/x
  3. Step 3: Cross multiply
    19,161.71x = 26,443.66 × 10,664.40
  4. Step 4: Simplify right side
    19,161.71x = 282,005,767.70
  5. Step 5: Solve for x
    x = 282,005,767.70/19,161.71
  6. Step 6: Final answer
    x = 14,717.15

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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.