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Finding the Fourth Proportional to 10,607.04, 15,905.60 and 3,209.60

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Solution

The fourth proportional to 10,607.04, 15,905.60 and 3,209.60 is: 4,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.04 : 15,905.60 = 3,209.60 : x
  2. Step 2: Convert to fraction form
    10,607.04/15,905.60 = 3,209.60/x
  3. Step 3: Cross multiply
    10,607.04x = 15,905.60 × 3,209.60
  4. Step 4: Simplify right side
    10,607.04x = 51,050,613.76
  5. Step 5: Solve for x
    x = 51,050,613.76/10,607.04
  6. Step 6: Final answer
    x = 4,812.90

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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.