Home / 11,242.70-16,843.80-5,386.40

Finding the Fourth Proportional to 11,242.70, 16,843.80 and 5,386.40

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Solution

The fourth proportional to 11,242.70, 16,843.80 and 5,386.40 is: 8,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.70 : 16,843.80 = 5,386.40 : x
  2. Step 2: Convert to fraction form
    11,242.70/16,843.80 = 5,386.40/x
  3. Step 3: Cross multiply
    11,242.70x = 16,843.80 × 5,386.40
  4. Step 4: Simplify right side
    11,242.70x = 90,727,444.32
  5. Step 5: Solve for x
    x = 90,727,444.32/11,242.70
  6. Step 6: Final answer
    x = 8,069.90

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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.