Home / 11,253.51-16,870.80-5,326.97

Finding the Fourth Proportional to 11,253.51, 16,870.80 and 5,326.97

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Solution

The fourth proportional to 11,253.51, 16,870.80 and 5,326.97 is: 7,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.51 : 16,870.80 = 5,326.97 : x
  2. Step 2: Convert to fraction form
    11,253.51/16,870.80 = 5,326.97/x
  3. Step 3: Cross multiply
    11,253.51x = 16,870.80 × 5,326.97
  4. Step 4: Simplify right side
    11,253.51x = 89,870,161.12
  5. Step 5: Solve for x
    x = 89,870,161.12/11,253.51
  6. Step 6: Final answer
    x = 7,985.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.