Home / 13,165.46-18,166.30-7,499.49

Finding the Fourth Proportional to 13,165.46, 18,166.30 and 7,499.49

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Solution

The fourth proportional to 13,165.46, 18,166.30 and 7,499.49 is: 10,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.46 : 18,166.30 = 7,499.49 : x
  2. Step 2: Convert to fraction form
    13,165.46/18,166.30 = 7,499.49/x
  3. Step 3: Cross multiply
    13,165.46x = 18,166.30 × 7,499.49
  4. Step 4: Simplify right side
    13,165.46x = 136,237,939.77
  5. Step 5: Solve for x
    x = 136,237,939.77/13,165.46
  6. Step 6: Final answer
    x = 10,348.14

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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.