Home / 13,490.20-20,230.44-5,699.62

Finding the Fourth Proportional to 13,490.20, 20,230.44 and 5,699.62

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Solution

The fourth proportional to 13,490.20, 20,230.44 and 5,699.62 is: 8,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.20 : 20,230.44 = 5,699.62 : x
  2. Step 2: Convert to fraction form
    13,490.20/20,230.44 = 5,699.62/x
  3. Step 3: Cross multiply
    13,490.20x = 20,230.44 × 5,699.62
  4. Step 4: Simplify right side
    13,490.20x = 115,305,748.48
  5. Step 5: Solve for x
    x = 115,305,748.48/13,490.20
  6. Step 6: Final answer
    x = 8,547.37

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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.