Home / 11,909.54-16,436.51-6,875.11

Finding the Fourth Proportional to 11,909.54, 16,436.51 and 6,875.11

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Solution

The fourth proportional to 11,909.54, 16,436.51 and 6,875.11 is: 9,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.54 : 16,436.51 = 6,875.11 : x
  2. Step 2: Convert to fraction form
    11,909.54/16,436.51 = 6,875.11/x
  3. Step 3: Cross multiply
    11,909.54x = 16,436.51 × 6,875.11
  4. Step 4: Simplify right side
    11,909.54x = 113,002,697.71
  5. Step 5: Solve for x
    x = 113,002,697.71/11,909.54
  6. Step 6: Final answer
    x = 9,488.42

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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.