Home / 13,166.75-18,165.67-7,497.49

Finding the Fourth Proportional to 13,166.75, 18,165.67 and 7,497.49

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Solution

The fourth proportional to 13,166.75, 18,165.67 and 7,497.49 is: 10,344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.75 : 18,165.67 = 7,497.49 : x
  2. Step 2: Convert to fraction form
    13,166.75/18,165.67 = 7,497.49/x
  3. Step 3: Cross multiply
    13,166.75x = 18,165.67 × 7,497.49
  4. Step 4: Simplify right side
    13,166.75x = 136,196,929.17
  5. Step 5: Solve for x
    x = 136,196,929.17/13,166.75
  6. Step 6: Final answer
    x = 10,344.01

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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.