Home / 11,904.93-16,428.87-6,869.36

Finding the Fourth Proportional to 11,904.93, 16,428.87 and 6,869.36

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Solution

The fourth proportional to 11,904.93, 16,428.87 and 6,869.36 is: 9,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.93 : 16,428.87 = 6,869.36 : x
  2. Step 2: Convert to fraction form
    11,904.93/16,428.87 = 6,869.36/x
  3. Step 3: Cross multiply
    11,904.93x = 16,428.87 × 6,869.36
  4. Step 4: Simplify right side
    11,904.93x = 112,855,740.28
  5. Step 5: Solve for x
    x = 112,855,740.28/11,904.93
  6. Step 6: Final answer
    x = 9,479.75

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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.