Home / 8,904.23-12,284.39-5,716.68

Finding the Fourth Proportional to 8,904.23, 12,284.39 and 5,716.68

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Solution

The fourth proportional to 8,904.23, 12,284.39 and 5,716.68 is: 7,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.23 : 12,284.39 = 5,716.68 : x
  2. Step 2: Convert to fraction form
    8,904.23/12,284.39 = 5,716.68/x
  3. Step 3: Cross multiply
    8,904.23x = 12,284.39 × 5,716.68
  4. Step 4: Simplify right side
    8,904.23x = 70,225,926.63
  5. Step 5: Solve for x
    x = 70,225,926.63/8,904.23
  6. Step 6: Final answer
    x = 7,886.81

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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.