Home / 8,701.84-13,052.70-2,128.12

Finding the Fourth Proportional to 8,701.84, 13,052.70 and 2,128.12

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Solution

The fourth proportional to 8,701.84, 13,052.70 and 2,128.12 is: 3,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.84 : 13,052.70 = 2,128.12 : x
  2. Step 2: Convert to fraction form
    8,701.84/13,052.70 = 2,128.12/x
  3. Step 3: Cross multiply
    8,701.84x = 13,052.70 × 2,128.12
  4. Step 4: Simplify right side
    8,701.84x = 27,777,711.92
  5. Step 5: Solve for x
    x = 27,777,711.92/8,701.84
  6. Step 6: Final answer
    x = 3,192.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.