Home / 12,296.64-16,967.55-6,990.12

Finding the Fourth Proportional to 12,296.64, 16,967.55 and 6,990.12

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Solution

The fourth proportional to 12,296.64, 16,967.55 and 6,990.12 is: 9,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.64 : 16,967.55 = 6,990.12 : x
  2. Step 2: Convert to fraction form
    12,296.64/16,967.55 = 6,990.12/x
  3. Step 3: Cross multiply
    12,296.64x = 16,967.55 × 6,990.12
  4. Step 4: Simplify right side
    12,296.64x = 118,605,210.61
  5. Step 5: Solve for x
    x = 118,605,210.61/12,296.64
  6. Step 6: Final answer
    x = 9,645.33

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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.