Home / 10,986.06-15,159.55-6,205.49

Finding the Fourth Proportional to 10,986.06, 15,159.55 and 6,205.49

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Solution

The fourth proportional to 10,986.06, 15,159.55 and 6,205.49 is: 8,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.06 : 15,159.55 = 6,205.49 : x
  2. Step 2: Convert to fraction form
    10,986.06/15,159.55 = 6,205.49/x
  3. Step 3: Cross multiply
    10,986.06x = 15,159.55 × 6,205.49
  4. Step 4: Simplify right side
    10,986.06x = 94,072,458.31
  5. Step 5: Solve for x
    x = 94,072,458.31/10,986.06
  6. Step 6: Final answer
    x = 8,562.89

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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.