Home / 16,102.89-22,220.60-9,389.14

Finding the Fourth Proportional to 16,102.89, 22,220.60 and 9,389.14

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Solution

The fourth proportional to 16,102.89, 22,220.60 and 9,389.14 is: 12,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,102.89 : 22,220.60 = 9,389.14 : x
  2. Step 2: Convert to fraction form
    16,102.89/22,220.60 = 9,389.14/x
  3. Step 3: Cross multiply
    16,102.89x = 22,220.60 × 9,389.14
  4. Step 4: Simplify right side
    16,102.89x = 208,632,363.50
  5. Step 5: Solve for x
    x = 208,632,363.50/16,102.89
  6. Step 6: Final answer
    x = 12,956.21

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Half scale
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Double scale
Find fourth proportional to 16,103.89, 22,221.98 and 9,390.14
Similar ratio
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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.