Home / 8,950.35-12,353.09-5,172.99

Finding the Fourth Proportional to 8,950.35, 12,353.09 and 5,172.99

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Solution

The fourth proportional to 8,950.35, 12,353.09 and 5,172.99 is: 7,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.35 : 12,353.09 = 5,172.99 : x
  2. Step 2: Convert to fraction form
    8,950.35/12,353.09 = 5,172.99/x
  3. Step 3: Cross multiply
    8,950.35x = 12,353.09 × 5,172.99
  4. Step 4: Simplify right side
    8,950.35x = 63,902,385.17
  5. Step 5: Solve for x
    x = 63,902,385.17/8,950.35
  6. Step 6: Final answer
    x = 7,139.65

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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.