Home / 13,172.55-19,769.20-5,782.11

Finding the Fourth Proportional to 13,172.55, 19,769.20 and 5,782.11

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Solution

The fourth proportional to 13,172.55, 19,769.20 and 5,782.11 is: 8,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.55 : 19,769.20 = 5,782.11 : x
  2. Step 2: Convert to fraction form
    13,172.55/19,769.20 = 5,782.11/x
  3. Step 3: Cross multiply
    13,172.55x = 19,769.20 × 5,782.11
  4. Step 4: Simplify right side
    13,172.55x = 114,307,689.01
  5. Step 5: Solve for x
    x = 114,307,689.01/13,172.55
  6. Step 6: Final answer
    x = 8,677.72

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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.