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Finding the Fourth Proportional to 13,033.88, 17,986.65 and 7,065.39

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Solution

The fourth proportional to 13,033.88, 17,986.65 and 7,065.39 is: 9,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,033.88 : 17,986.65 = 7,065.39 : x
  2. Step 2: Convert to fraction form
    13,033.88/17,986.65 = 7,065.39/x
  3. Step 3: Cross multiply
    13,033.88x = 17,986.65 × 7,065.39
  4. Step 4: Simplify right side
    13,033.88x = 127,082,697.04
  5. Step 5: Solve for x
    x = 127,082,697.04/13,033.88
  6. Step 6: Final answer
    x = 9,750.18

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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.