Home / 12,298.82-16,971.80-6,920.96

Finding the Fourth Proportional to 12,298.82, 16,971.80 and 6,920.96

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Solution

The fourth proportional to 12,298.82, 16,971.80 and 6,920.96 is: 9,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.82 : 16,971.80 = 6,920.96 : x
  2. Step 2: Convert to fraction form
    12,298.82/16,971.80 = 6,920.96/x
  3. Step 3: Cross multiply
    12,298.82x = 16,971.80 × 6,920.96
  4. Step 4: Simplify right side
    12,298.82x = 117,461,148.93
  5. Step 5: Solve for x
    x = 117,461,148.93/12,298.82
  6. Step 6: Final answer
    x = 9,550.60

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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.