Home / 7,017.21-9,679.42-4,182.68

Finding the Fourth Proportional to 7,017.21, 9,679.42 and 4,182.68

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Solution

The fourth proportional to 7,017.21, 9,679.42 and 4,182.68 is: 5,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.21 : 9,679.42 = 4,182.68 : x
  2. Step 2: Convert to fraction form
    7,017.21/9,679.42 = 4,182.68/x
  3. Step 3: Cross multiply
    7,017.21x = 9,679.42 × 4,182.68
  4. Step 4: Simplify right side
    7,017.21x = 40,485,916.45
  5. Step 5: Solve for x
    x = 40,485,916.45/7,017.21
  6. Step 6: Final answer
    x = 5,769.52

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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.