Home / 10,785.68-16,178.80-2,994.48

Finding the Fourth Proportional to 10,785.68, 16,178.80 and 2,994.48

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Solution

The fourth proportional to 10,785.68, 16,178.80 and 2,994.48 is: 4,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.68 : 16,178.80 = 2,994.48 : x
  2. Step 2: Convert to fraction form
    10,785.68/16,178.80 = 2,994.48/x
  3. Step 3: Cross multiply
    10,785.68x = 16,178.80 × 2,994.48
  4. Step 4: Simplify right side
    10,785.68x = 48,447,093.02
  5. Step 5: Solve for x
    x = 48,447,093.02/10,785.68
  6. Step 6: Final answer
    x = 4,491.80

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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.