Home / 10,785.02-16,177.55-3,390.13

Finding the Fourth Proportional to 10,785.02, 16,177.55 and 3,390.13

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Solution

The fourth proportional to 10,785.02, 16,177.55 and 3,390.13 is: 5,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.02 : 16,177.55 = 3,390.13 : x
  2. Step 2: Convert to fraction form
    10,785.02/16,177.55 = 3,390.13/x
  3. Step 3: Cross multiply
    10,785.02x = 16,177.55 × 3,390.13
  4. Step 4: Simplify right side
    10,785.02x = 54,843,940.19
  5. Step 5: Solve for x
    x = 54,843,940.19/10,785.02
  6. Step 6: Final answer
    x = 5,085.19

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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.