Home / 19,134.79-26,410.30-10,639.90

Finding the Fourth Proportional to 19,134.79, 26,410.30 and 10,639.90

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Solution

The fourth proportional to 19,134.79, 26,410.30 and 10,639.90 is: 14,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.79 : 26,410.30 = 10,639.90 : x
  2. Step 2: Convert to fraction form
    19,134.79/26,410.30 = 10,639.90/x
  3. Step 3: Cross multiply
    19,134.79x = 26,410.30 × 10,639.90
  4. Step 4: Simplify right side
    19,134.79x = 281,002,808.83
  5. Step 5: Solve for x
    x = 281,002,808.83/19,134.79
  6. Step 6: Final answer
    x = 14,685.44

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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.