Home / 8,645.28-11,926.80-5,660.16

Finding the Fourth Proportional to 8,645.28, 11,926.80 and 5,660.16

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Solution

The fourth proportional to 8,645.28, 11,926.80 and 5,660.16 is: 7,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.28 : 11,926.80 = 5,660.16 : x
  2. Step 2: Convert to fraction form
    8,645.28/11,926.80 = 5,660.16/x
  3. Step 3: Cross multiply
    8,645.28x = 11,926.80 × 5,660.16
  4. Step 4: Simplify right side
    8,645.28x = 67,507,596.29
  5. Step 5: Solve for x
    x = 67,507,596.29/8,645.28
  6. Step 6: Final answer
    x = 7,808.61

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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.