Home / 10,918.69-15,069.41-6,672.19

Finding the Fourth Proportional to 10,918.69, 15,069.41 and 6,672.19

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Solution

The fourth proportional to 10,918.69, 15,069.41 and 6,672.19 is: 9,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.69 : 15,069.41 = 6,672.19 : x
  2. Step 2: Convert to fraction form
    10,918.69/15,069.41 = 6,672.19/x
  3. Step 3: Cross multiply
    10,918.69x = 15,069.41 × 6,672.19
  4. Step 4: Simplify right side
    10,918.69x = 100,545,966.71
  5. Step 5: Solve for x
    x = 100,545,966.71/10,918.69
  6. Step 6: Final answer
    x = 9,208.61

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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.