Home / 13,550.80-18,690.06-9,567.76

Finding the Fourth Proportional to 13,550.80, 18,690.06 and 9,567.76

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Solution

The fourth proportional to 13,550.80, 18,690.06 and 9,567.76 is: 13,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.80 : 18,690.06 = 9,567.76 : x
  2. Step 2: Convert to fraction form
    13,550.80/18,690.06 = 9,567.76/x
  3. Step 3: Cross multiply
    13,550.80x = 18,690.06 × 9,567.76
  4. Step 4: Simplify right side
    13,550.80x = 178,822,008.47
  5. Step 5: Solve for x
    x = 178,822,008.47/13,550.80
  6. Step 6: Final answer
    x = 13,196.42

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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.