Home / 12,496,685.78-17,247,021.66-6,990,366.54

Finding the Fourth Proportional to 12,496,685.78, 17,247,021.66 and 6,990,366.54

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Solution

The fourth proportional to 12,496,685.78, 17,247,021.66 and 6,990,366.54 is: 9,647,598.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496,685.78 : 17,247,021.66 = 6,990,366.54 : x
  2. Step 2: Convert to fraction form
    12,496,685.78/17,247,021.66 = 6,990,366.54/x
  3. Step 3: Cross multiply
    12,496,685.78x = 17,247,021.66 × 6,990,366.54
  4. Step 4: Simplify right side
    12,496,685.78x = 120,563,003,126,719.27
  5. Step 5: Solve for x
    x = 120,563,003,126,719.27/12,496,685.78
  6. Step 6: Final answer
    x = 9,647,598.19

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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.