Home / 12,443.18-17,171.58-6,854.18

Finding the Fourth Proportional to 12,443.18, 17,171.58 and 6,854.18

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Solution

The fourth proportional to 12,443.18, 17,171.58 and 6,854.18 is: 9,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.18 : 17,171.58 = 6,854.18 : x
  2. Step 2: Convert to fraction form
    12,443.18/17,171.58 = 6,854.18/x
  3. Step 3: Cross multiply
    12,443.18x = 17,171.58 × 6,854.18
  4. Step 4: Simplify right side
    12,443.18x = 117,697,014.35
  5. Step 5: Solve for x
    x = 117,697,014.35/12,443.18
  6. Step 6: Final answer
    x = 9,458.76

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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.