Home / 14,424.40-21,636.60-8,859.70

Finding the Fourth Proportional to 14,424.40, 21,636.60 and 8,859.70

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Solution

The fourth proportional to 14,424.40, 21,636.60 and 8,859.70 is: 13,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.40 : 21,636.60 = 8,859.70 : x
  2. Step 2: Convert to fraction form
    14,424.40/21,636.60 = 8,859.70/x
  3. Step 3: Cross multiply
    14,424.40x = 21,636.60 × 8,859.70
  4. Step 4: Simplify right side
    14,424.40x = 191,693,785.02
  5. Step 5: Solve for x
    x = 191,693,785.02/14,424.40
  6. Step 6: Final answer
    x = 13,289.55

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Similar ratio
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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.