Home / 13,126.72-19,679.68-6,549.52

Finding the Fourth Proportional to 13,126.72, 19,679.68 and 6,549.52

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Solution

The fourth proportional to 13,126.72, 19,679.68 and 6,549.52 is: 9,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.72 : 19,679.68 = 6,549.52 : x
  2. Step 2: Convert to fraction form
    13,126.72/19,679.68 = 6,549.52/x
  3. Step 3: Cross multiply
    13,126.72x = 19,679.68 × 6,549.52
  4. Step 4: Simplify right side
    13,126.72x = 128,892,457.75
  5. Step 5: Solve for x
    x = 128,892,457.75/13,126.72
  6. Step 6: Final answer
    x = 9,819.09

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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.