Home / 10,530.90-15,799.08-3,135.30

Finding the Fourth Proportional to 10,530.90, 15,799.08 and 3,135.30

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Solution

The fourth proportional to 10,530.90, 15,799.08 and 3,135.30 is: 4,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.90 : 15,799.08 = 3,135.30 : x
  2. Step 2: Convert to fraction form
    10,530.90/15,799.08 = 3,135.30/x
  3. Step 3: Cross multiply
    10,530.90x = 15,799.08 × 3,135.30
  4. Step 4: Simplify right side
    10,530.90x = 49,534,855.52
  5. Step 5: Solve for x
    x = 49,534,855.52/10,530.90
  6. Step 6: Final answer
    x = 4,703.76

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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.