Home / 10,820.57-16,239.35-5,555.36

Finding the Fourth Proportional to 10,820.57, 16,239.35 and 5,555.36

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Solution

The fourth proportional to 10,820.57, 16,239.35 and 5,555.36 is: 8,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.57 : 16,239.35 = 5,555.36 : x
  2. Step 2: Convert to fraction form
    10,820.57/16,239.35 = 5,555.36/x
  3. Step 3: Cross multiply
    10,820.57x = 16,239.35 × 5,555.36
  4. Step 4: Simplify right side
    10,820.57x = 90,215,489.90
  5. Step 5: Solve for x
    x = 90,215,489.90/10,820.57
  6. Step 6: Final answer
    x = 8,337.41

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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.