Home / 13,663.10-20,494.38-4,429.10

Finding the Fourth Proportional to 13,663.10, 20,494.38 and 4,429.10

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Solution

The fourth proportional to 13,663.10, 20,494.38 and 4,429.10 is: 6,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.10 : 20,494.38 = 4,429.10 : x
  2. Step 2: Convert to fraction form
    13,663.10/20,494.38 = 4,429.10/x
  3. Step 3: Cross multiply
    13,663.10x = 20,494.38 × 4,429.10
  4. Step 4: Simplify right side
    13,663.10x = 90,771,658.46
  5. Step 5: Solve for x
    x = 90,771,658.46/13,663.10
  6. Step 6: Final answer
    x = 6,643.56

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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.