Home / 14,971.88-20,660.70-8,257.63

Finding the Fourth Proportional to 14,971.88, 20,660.70 and 8,257.63

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Solution

The fourth proportional to 14,971.88, 20,660.70 and 8,257.63 is: 11,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.88 : 20,660.70 = 8,257.63 : x
  2. Step 2: Convert to fraction form
    14,971.88/20,660.70 = 8,257.63/x
  3. Step 3: Cross multiply
    14,971.88x = 20,660.70 × 8,257.63
  4. Step 4: Simplify right side
    14,971.88x = 170,608,416.14
  5. Step 5: Solve for x
    x = 170,608,416.14/14,971.88
  6. Step 6: Final answer
    x = 11,395.26

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Double scale
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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.