Home / 10,762.20-16,143.10-4,435.70

Finding the Fourth Proportional to 10,762.20, 16,143.10 and 4,435.70

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Solution

The fourth proportional to 10,762.20, 16,143.10 and 4,435.70 is: 6,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,762.20 : 16,143.10 = 4,435.70 : x
  2. Step 2: Convert to fraction form
    10,762.20/16,143.10 = 4,435.70/x
  3. Step 3: Cross multiply
    10,762.20x = 16,143.10 × 4,435.70
  4. Step 4: Simplify right side
    10,762.20x = 71,605,856.87
  5. Step 5: Solve for x
    x = 71,605,856.87/10,762.20
  6. Step 6: Final answer
    x = 6,653.46

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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.