Home / 10,820.20-16,230.30-5,277.10

Finding the Fourth Proportional to 10,820.20, 16,230.30 and 5,277.10

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Solution

The fourth proportional to 10,820.20, 16,230.30 and 5,277.10 is: 7,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.20 : 16,230.30 = 5,277.10 : x
  2. Step 2: Convert to fraction form
    10,820.20/16,230.30 = 5,277.10/x
  3. Step 3: Cross multiply
    10,820.20x = 16,230.30 × 5,277.10
  4. Step 4: Simplify right side
    10,820.20x = 85,648,916.13
  5. Step 5: Solve for x
    x = 85,648,916.13/10,820.20
  6. Step 6: Final answer
    x = 7,915.65

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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.