Home / 13,513.08-20,269.83-4,748.10

Finding the Fourth Proportional to 13,513.08, 20,269.83 and 4,748.10

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Solution

The fourth proportional to 13,513.08, 20,269.83 and 4,748.10 is: 7,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.08 : 20,269.83 = 4,748.10 : x
  2. Step 2: Convert to fraction form
    13,513.08/20,269.83 = 4,748.10/x
  3. Step 3: Cross multiply
    13,513.08x = 20,269.83 × 4,748.10
  4. Step 4: Simplify right side
    13,513.08x = 96,243,179.82
  5. Step 5: Solve for x
    x = 96,243,179.82/13,513.08
  6. Step 6: Final answer
    x = 7,122.22

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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.