Home / 16,785.66-23,158.80-10,806.78

Finding the Fourth Proportional to 16,785.66, 23,158.80 and 10,806.78

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Solution

The fourth proportional to 16,785.66, 23,158.80 and 10,806.78 is: 14,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.66 : 23,158.80 = 10,806.78 : x
  2. Step 2: Convert to fraction form
    16,785.66/23,158.80 = 10,806.78/x
  3. Step 3: Cross multiply
    16,785.66x = 23,158.80 × 10,806.78
  4. Step 4: Simplify right side
    16,785.66x = 250,272,056.66
  5. Step 5: Solve for x
    x = 250,272,056.66/16,785.66
  6. Step 6: Final answer
    x = 14,909.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.