Home / 19,138.43-26,411.71-10,642.96

Finding the Fourth Proportional to 19,138.43, 26,411.71 and 10,642.96

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Solution

The fourth proportional to 19,138.43, 26,411.71 and 10,642.96 is: 14,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.43 : 26,411.71 = 10,642.96 : x
  2. Step 2: Convert to fraction form
    19,138.43/26,411.71 = 10,642.96/x
  3. Step 3: Cross multiply
    19,138.43x = 26,411.71 × 10,642.96
  4. Step 4: Simplify right side
    19,138.43x = 281,098,746.45
  5. Step 5: Solve for x
    x = 281,098,746.45/19,138.43
  6. Step 6: Final answer
    x = 14,687.66

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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.