Home / 12,521.32-17,278.89-6,855.97

Finding the Fourth Proportional to 12,521.32, 17,278.89 and 6,855.97

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Solution

The fourth proportional to 12,521.32, 17,278.89 and 6,855.97 is: 9,460.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.32 : 17,278.89 = 6,855.97 : x
  2. Step 2: Convert to fraction form
    12,521.32/17,278.89 = 6,855.97/x
  3. Step 3: Cross multiply
    12,521.32x = 17,278.89 × 6,855.97
  4. Step 4: Simplify right side
    12,521.32x = 118,463,430.80
  5. Step 5: Solve for x
    x = 118,463,430.80/12,521.32
  6. Step 6: Final answer
    x = 9,460.94

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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.