Home / 9,918.40-13,676.18-6,328.58

Finding the Fourth Proportional to 9,918.40, 13,676.18 and 6,328.58

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Solution

The fourth proportional to 9,918.40, 13,676.18 and 6,328.58 is: 8,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.40 : 13,676.18 = 6,328.58 : x
  2. Step 2: Convert to fraction form
    9,918.40/13,676.18 = 6,328.58/x
  3. Step 3: Cross multiply
    9,918.40x = 13,676.18 × 6,328.58
  4. Step 4: Simplify right side
    9,918.40x = 86,550,799.22
  5. Step 5: Solve for x
    x = 86,550,799.22/9,918.40
  6. Step 6: Final answer
    x = 8,726.29

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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.