Home / 11,218.82-15,479.25-6,746

Finding the Fourth Proportional to 11,218.82, 15,479.25 and 6,746

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Solution

The fourth proportional to 11,218.82, 15,479.25 and 6,746 is: 9,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.82 : 15,479.25 = 6,746 : x
  2. Step 2: Convert to fraction form
    11,218.82/15,479.25 = 6,746/x
  3. Step 3: Cross multiply
    11,218.82x = 15,479.25 × 6,746
  4. Step 4: Simplify right side
    11,218.82x = 104,423,020.50
  5. Step 5: Solve for x
    x = 104,423,020.50/11,218.82
  6. Step 6: Final answer
    x = 9,307.84

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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.