Home / 10,340.60-15,518.10-6,651.80

Finding the Fourth Proportional to 10,340.60, 15,518.10 and 6,651.80

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Solution

The fourth proportional to 10,340.60, 15,518.10 and 6,651.80 is: 9,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.60 : 15,518.10 = 6,651.80 : x
  2. Step 2: Convert to fraction form
    10,340.60/15,518.10 = 6,651.80/x
  3. Step 3: Cross multiply
    10,340.60x = 15,518.10 × 6,651.80
  4. Step 4: Simplify right side
    10,340.60x = 103,223,297.58
  5. Step 5: Solve for x
    x = 103,223,297.58/10,340.60
  6. Step 6: Final answer
    x = 9,982.33

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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.