Home / 12,708.28-19,065.66-6,864.94

Finding the Fourth Proportional to 12,708.28, 19,065.66 and 6,864.94

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Solution

The fourth proportional to 12,708.28, 19,065.66 and 6,864.94 is: 10,299.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.28 : 19,065.66 = 6,864.94 : x
  2. Step 2: Convert to fraction form
    12,708.28/19,065.66 = 6,864.94/x
  3. Step 3: Cross multiply
    12,708.28x = 19,065.66 × 6,864.94
  4. Step 4: Simplify right side
    12,708.28x = 130,884,611.96
  5. Step 5: Solve for x
    x = 130,884,611.96/12,708.28
  6. Step 6: Final answer
    x = 10,299.16

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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.