Home / 9,459.60-14,190.90-3,220.20

Finding the Fourth Proportional to 9,459.60, 14,190.90 and 3,220.20

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Solution

The fourth proportional to 9,459.60, 14,190.90 and 3,220.20 is: 4,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,459.60 : 14,190.90 = 3,220.20 : x
  2. Step 2: Convert to fraction form
    9,459.60/14,190.90 = 3,220.20/x
  3. Step 3: Cross multiply
    9,459.60x = 14,190.90 × 3,220.20
  4. Step 4: Simplify right side
    9,459.60x = 45,697,536.18
  5. Step 5: Solve for x
    x = 45,697,536.18/9,459.60
  6. Step 6: Final answer
    x = 4,830.81

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Half scale
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Double scale
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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.