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Finding the Fourth Proportional to 8,707.10, 13,059.10 and 3,962.15

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Solution

The fourth proportional to 8,707.10, 13,059.10 and 3,962.15 is: 5,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.10 : 13,059.10 = 3,962.15 : x
  2. Step 2: Convert to fraction form
    8,707.10/13,059.10 = 3,962.15/x
  3. Step 3: Cross multiply
    8,707.10x = 13,059.10 × 3,962.15
  4. Step 4: Simplify right side
    8,707.10x = 51,742,113.07
  5. Step 5: Solve for x
    x = 51,742,113.07/8,707.10
  6. Step 6: Final answer
    x = 5,942.52

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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.