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Finding the Fourth Proportional to 8,735.69, 12,051.23 and 5,148.20

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Solution

The fourth proportional to 8,735.69, 12,051.23 and 5,148.20 is: 7,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.69 : 12,051.23 = 5,148.20 : x
  2. Step 2: Convert to fraction form
    8,735.69/12,051.23 = 5,148.20/x
  3. Step 3: Cross multiply
    8,735.69x = 12,051.23 × 5,148.20
  4. Step 4: Simplify right side
    8,735.69x = 62,042,146.67
  5. Step 5: Solve for x
    x = 62,042,146.67/8,735.69
  6. Step 6: Final answer
    x = 7,102.14

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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.