Home / 13,195.57-19,798.01-8,770.81

Finding the Fourth Proportional to 13,195.57, 19,798.01 and 8,770.81

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Solution

The fourth proportional to 13,195.57, 19,798.01 and 8,770.81 is: 13,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.57 : 19,798.01 = 8,770.81 : x
  2. Step 2: Convert to fraction form
    13,195.57/19,798.01 = 8,770.81/x
  3. Step 3: Cross multiply
    13,195.57x = 19,798.01 × 8,770.81
  4. Step 4: Simplify right side
    13,195.57x = 173,644,597.87
  5. Step 5: Solve for x
    x = 173,644,597.87/13,195.57
  6. Step 6: Final answer
    x = 13,159.31

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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.