Home / 10,615.40-15,930.30-6,908.60

Finding the Fourth Proportional to 10,615.40, 15,930.30 and 6,908.60

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Solution

The fourth proportional to 10,615.40, 15,930.30 and 6,908.60 is: 10,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.40 : 15,930.30 = 6,908.60 : x
  2. Step 2: Convert to fraction form
    10,615.40/15,930.30 = 6,908.60/x
  3. Step 3: Cross multiply
    10,615.40x = 15,930.30 × 6,908.60
  4. Step 4: Simplify right side
    10,615.40x = 110,056,070.58
  5. Step 5: Solve for x
    x = 110,056,070.58/10,615.40
  6. Step 6: Final answer
    x = 10,367.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.