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Finding the Fourth Proportional to 19,314.84, 26,648.24 and 10,815.68

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Solution

The fourth proportional to 19,314.84, 26,648.24 and 10,815.68 is: 14,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.84 : 26,648.24 = 10,815.68 : x
  2. Step 2: Convert to fraction form
    19,314.84/26,648.24 = 10,815.68/x
  3. Step 3: Cross multiply
    19,314.84x = 26,648.24 × 10,815.68
  4. Step 4: Simplify right side
    19,314.84x = 288,218,836.40
  5. Step 5: Solve for x
    x = 288,218,836.40/19,314.84
  6. Step 6: Final answer
    x = 14,922.14

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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.