Home / 11,135.80-16,703.70-9,386.20

Finding the Fourth Proportional to 11,135.80, 16,703.70 and 9,386.20

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Solution

The fourth proportional to 11,135.80, 16,703.70 and 9,386.20 is: 14,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.80 : 16,703.70 = 9,386.20 : x
  2. Step 2: Convert to fraction form
    11,135.80/16,703.70 = 9,386.20/x
  3. Step 3: Cross multiply
    11,135.80x = 16,703.70 × 9,386.20
  4. Step 4: Simplify right side
    11,135.80x = 156,784,268.94
  5. Step 5: Solve for x
    x = 156,784,268.94/11,135.80
  6. Step 6: Final answer
    x = 14,079.30

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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.