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Finding the Fourth Proportional to 7,510.59, 11,267.10 and 3,128.49

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Solution

The fourth proportional to 7,510.59, 11,267.10 and 3,128.49 is: 4,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.59 : 11,267.10 = 3,128.49 : x
  2. Step 2: Convert to fraction form
    7,510.59/11,267.10 = 3,128.49/x
  3. Step 3: Cross multiply
    7,510.59x = 11,267.10 × 3,128.49
  4. Step 4: Simplify right side
    7,510.59x = 35,249,009.68
  5. Step 5: Solve for x
    x = 35,249,009.68/7,510.59
  6. Step 6: Final answer
    x = 4,693.24

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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.