Home / 8,995.19-12,403.94-7,740.50

Finding the Fourth Proportional to 8,995.19, 12,403.94 and 7,740.50

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Solution

The fourth proportional to 8,995.19, 12,403.94 and 7,740.50 is: 10,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.19 : 12,403.94 = 7,740.50 : x
  2. Step 2: Convert to fraction form
    8,995.19/12,403.94 = 7,740.50/x
  3. Step 3: Cross multiply
    8,995.19x = 12,403.94 × 7,740.50
  4. Step 4: Simplify right side
    8,995.19x = 96,012,596.85
  5. Step 5: Solve for x
    x = 96,012,596.85/8,995.19
  6. Step 6: Final answer
    x = 10,673.78

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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.