Home / 10,944.32-16,424.57-8,139.56

Finding the Fourth Proportional to 10,944.32, 16,424.57 and 8,139.56

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Solution

The fourth proportional to 10,944.32, 16,424.57 and 8,139.56 is: 12,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,944.32 : 16,424.57 = 8,139.56 : x
  2. Step 2: Convert to fraction form
    10,944.32/16,424.57 = 8,139.56/x
  3. Step 3: Cross multiply
    10,944.32x = 16,424.57 × 8,139.56
  4. Step 4: Simplify right side
    10,944.32x = 133,688,711.22
  5. Step 5: Solve for x
    x = 133,688,711.22/10,944.32
  6. Step 6: Final answer
    x = 12,215.36

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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.