Home / 11,351.25-15,666.80-10,853.10

Finding the Fourth Proportional to 11,351.25, 15,666.80 and 10,853.10

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Solution

The fourth proportional to 11,351.25, 15,666.80 and 10,853.10 is: 14,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.25 : 15,666.80 = 10,853.10 : x
  2. Step 2: Convert to fraction form
    11,351.25/15,666.80 = 10,853.10/x
  3. Step 3: Cross multiply
    11,351.25x = 15,666.80 × 10,853.10
  4. Step 4: Simplify right side
    11,351.25x = 170,033,292.81
  5. Step 5: Solve for x
    x = 170,033,292.81/11,351.25
  6. Step 6: Final answer
    x = 14,979.26

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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.