Home / 14,981.96-20,670.19-9,679.91

Finding the Fourth Proportional to 14,981.96, 20,670.19 and 9,679.91

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Solution

The fourth proportional to 14,981.96, 20,670.19 and 9,679.91 is: 13,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.96 : 20,670.19 = 9,679.91 : x
  2. Step 2: Convert to fraction form
    14,981.96/20,670.19 = 9,679.91/x
  3. Step 3: Cross multiply
    14,981.96x = 20,670.19 × 9,679.91
  4. Step 4: Simplify right side
    14,981.96x = 200,085,451.33
  5. Step 5: Solve for x
    x = 200,085,451.33/14,981.96
  6. Step 6: Final answer
    x = 13,355.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.