Home / 13,252.78-18,279.64-9,001.46

Finding the Fourth Proportional to 13,252.78, 18,279.64 and 9,001.46

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Solution

The fourth proportional to 13,252.78, 18,279.64 and 9,001.46 is: 12,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.78 : 18,279.64 = 9,001.46 : x
  2. Step 2: Convert to fraction form
    13,252.78/18,279.64 = 9,001.46/x
  3. Step 3: Cross multiply
    13,252.78x = 18,279.64 × 9,001.46
  4. Step 4: Simplify right side
    13,252.78x = 164,543,505.23
  5. Step 5: Solve for x
    x = 164,543,505.23/13,252.78
  6. Step 6: Final answer
    x = 12,415.77

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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.