Home / 12,172.40-18,266.70-5,595.20

Finding the Fourth Proportional to 12,172.40, 18,266.70 and 5,595.20

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Solution

The fourth proportional to 12,172.40, 18,266.70 and 5,595.20 is: 8,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.40 : 18,266.70 = 5,595.20 : x
  2. Step 2: Convert to fraction form
    12,172.40/18,266.70 = 5,595.20/x
  3. Step 3: Cross multiply
    12,172.40x = 18,266.70 × 5,595.20
  4. Step 4: Simplify right side
    12,172.40x = 102,205,839.84
  5. Step 5: Solve for x
    x = 102,205,839.84/12,172.40
  6. Step 6: Final answer
    x = 8,396.52

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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.