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Finding the Fourth Proportional to 8,012.64, 11,051.88 and 7,351.68

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Solution

The fourth proportional to 8,012.64, 11,051.88 and 7,351.68 is: 10,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.64 : 11,051.88 = 7,351.68 : x
  2. Step 2: Convert to fraction form
    8,012.64/11,051.88 = 7,351.68/x
  3. Step 3: Cross multiply
    8,012.64x = 11,051.88 × 7,351.68
  4. Step 4: Simplify right side
    8,012.64x = 81,249,885.16
  5. Step 5: Solve for x
    x = 81,249,885.16/8,012.64
  6. Step 6: Final answer
    x = 10,140.21

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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.