Home / 12,275.06-16,939.59-6,686.06

Finding the Fourth Proportional to 12,275.06, 16,939.59 and 6,686.06

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Solution

The fourth proportional to 12,275.06, 16,939.59 and 6,686.06 is: 9,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.06 : 16,939.59 = 6,686.06 : x
  2. Step 2: Convert to fraction form
    12,275.06/16,939.59 = 6,686.06/x
  3. Step 3: Cross multiply
    12,275.06x = 16,939.59 × 6,686.06
  4. Step 4: Simplify right side
    12,275.06x = 113,259,157.46
  5. Step 5: Solve for x
    x = 113,259,157.46/12,275.06
  6. Step 6: Final answer
    x = 9,226.77

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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.