Home / 6,990.32-9,649.80-4,975.04

Finding the Fourth Proportional to 6,990.32, 9,649.80 and 4,975.04

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Solution

The fourth proportional to 6,990.32, 9,649.80 and 4,975.04 is: 6,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.32 : 9,649.80 = 4,975.04 : x
  2. Step 2: Convert to fraction form
    6,990.32/9,649.80 = 4,975.04/x
  3. Step 3: Cross multiply
    6,990.32x = 9,649.80 × 4,975.04
  4. Step 4: Simplify right side
    6,990.32x = 48,008,140.99
  5. Step 5: Solve for x
    x = 48,008,140.99/6,990.32
  6. Step 6: Final answer
    x = 6,867.80

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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.