Home / 10,820.10-16,266.60-9,216.30

Finding the Fourth Proportional to 10,820.10, 16,266.60 and 9,216.30

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Solution

The fourth proportional to 10,820.10, 16,266.60 and 9,216.30 is: 13,855.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.10 : 16,266.60 = 9,216.30 : x
  2. Step 2: Convert to fraction form
    10,820.10/16,266.60 = 9,216.30/x
  3. Step 3: Cross multiply
    10,820.10x = 16,266.60 × 9,216.30
  4. Step 4: Simplify right side
    10,820.10x = 149,917,865.58
  5. Step 5: Solve for x
    x = 149,917,865.58/10,820.10
  6. Step 6: Final answer
    x = 13,855.50

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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.