Home / 13,230.12-19,849.50-4,910.87

Finding the Fourth Proportional to 13,230.12, 19,849.50 and 4,910.87

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Solution

The fourth proportional to 13,230.12, 19,849.50 and 4,910.87 is: 7,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.12 : 19,849.50 = 4,910.87 : x
  2. Step 2: Convert to fraction form
    13,230.12/19,849.50 = 4,910.87/x
  3. Step 3: Cross multiply
    13,230.12x = 19,849.50 × 4,910.87
  4. Step 4: Simplify right side
    13,230.12x = 97,478,214.82
  5. Step 5: Solve for x
    x = 97,478,214.82/13,230.12
  6. Step 6: Final answer
    x = 7,367.90

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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.