Home / 10,553.80-15,834.30-4,712.20

Finding the Fourth Proportional to 10,553.80, 15,834.30 and 4,712.20

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Solution

The fourth proportional to 10,553.80, 15,834.30 and 4,712.20 is: 7,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.80 : 15,834.30 = 4,712.20 : x
  2. Step 2: Convert to fraction form
    10,553.80/15,834.30 = 4,712.20/x
  3. Step 3: Cross multiply
    10,553.80x = 15,834.30 × 4,712.20
  4. Step 4: Simplify right side
    10,553.80x = 74,614,388.46
  5. Step 5: Solve for x
    x = 74,614,388.46/10,553.80
  6. Step 6: Final answer
    x = 7,069.91

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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.