Home / 10,775.43-16,148.40-8,140.77

Finding the Fourth Proportional to 10,775.43, 16,148.40 and 8,140.77

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Solution

The fourth proportional to 10,775.43, 16,148.40 and 8,140.77 is: 12,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.43 : 16,148.40 = 8,140.77 : x
  2. Step 2: Convert to fraction form
    10,775.43/16,148.40 = 8,140.77/x
  3. Step 3: Cross multiply
    10,775.43x = 16,148.40 × 8,140.77
  4. Step 4: Simplify right side
    10,775.43x = 131,460,410.27
  5. Step 5: Solve for x
    x = 131,460,410.27/10,775.43
  6. Step 6: Final answer
    x = 12,200.02

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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.