Home / 15,698.22-21,663.60-8,983.96

Finding the Fourth Proportional to 15,698.22, 21,663.60 and 8,983.96

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Solution

The fourth proportional to 15,698.22, 21,663.60 and 8,983.96 is: 12,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.22 : 21,663.60 = 8,983.96 : x
  2. Step 2: Convert to fraction form
    15,698.22/21,663.60 = 8,983.96/x
  3. Step 3: Cross multiply
    15,698.22x = 21,663.60 × 8,983.96
  4. Step 4: Simplify right side
    15,698.22x = 194,624,863.31
  5. Step 5: Solve for x
    x = 194,624,863.31/15,698.22
  6. Step 6: Final answer
    x = 12,397.90

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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.