Home / 6,989.09-9,647.00-4,158.47

Finding the Fourth Proportional to 6,989.09, 9,647.00 and 4,158.47

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Solution

The fourth proportional to 6,989.09, 9,647.00 and 4,158.47 is: 5,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.09 : 9,647.00 = 4,158.47 : x
  2. Step 2: Convert to fraction form
    6,989.09/9,647.00 = 4,158.47/x
  3. Step 3: Cross multiply
    6,989.09x = 9,647.00 × 4,158.47
  4. Step 4: Simplify right side
    6,989.09x = 40,116,691.06
  5. Step 5: Solve for x
    x = 40,116,691.06/6,989.09
  6. Step 6: Final answer
    x = 5,739.91

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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.