Home / 10,913.88-15,061.60-6,198.60

Finding the Fourth Proportional to 10,913.88, 15,061.60 and 6,198.60

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Solution

The fourth proportional to 10,913.88, 15,061.60 and 6,198.60 is: 8,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.88 : 15,061.60 = 6,198.60 : x
  2. Step 2: Convert to fraction form
    10,913.88/15,061.60 = 6,198.60/x
  3. Step 3: Cross multiply
    10,913.88x = 15,061.60 × 6,198.60
  4. Step 4: Simplify right side
    10,913.88x = 93,360,833.76
  5. Step 5: Solve for x
    x = 93,360,833.76/10,913.88
  6. Step 6: Final answer
    x = 8,554.32

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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.