Home / 10,918.50-15,069.29-6,205.65

Finding the Fourth Proportional to 10,918.50, 15,069.29 and 6,205.65

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Solution

The fourth proportional to 10,918.50, 15,069.29 and 6,205.65 is: 8,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.50 : 15,069.29 = 6,205.65 : x
  2. Step 2: Convert to fraction form
    10,918.50/15,069.29 = 6,205.65/x
  3. Step 3: Cross multiply
    10,918.50x = 15,069.29 × 6,205.65
  4. Step 4: Simplify right side
    10,918.50x = 93,514,708.46
  5. Step 5: Solve for x
    x = 93,514,708.46/10,918.50
  6. Step 6: Final answer
    x = 8,564.79

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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.