Home / 12,417.18-17,135.37-6,828.18

Finding the Fourth Proportional to 12,417.18, 17,135.37 and 6,828.18

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Solution

The fourth proportional to 12,417.18, 17,135.37 and 6,828.18 is: 9,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.18 : 17,135.37 = 6,828.18 : x
  2. Step 2: Convert to fraction form
    12,417.18/17,135.37 = 6,828.18/x
  3. Step 3: Cross multiply
    12,417.18x = 17,135.37 × 6,828.18
  4. Step 4: Simplify right side
    12,417.18x = 117,003,390.73
  5. Step 5: Solve for x
    x = 117,003,390.73/12,417.18
  6. Step 6: Final answer
    x = 9,422.70

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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.