Home / 13,252.32-18,288.64-7,284.20

Finding the Fourth Proportional to 13,252.32, 18,288.64 and 7,284.20

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Solution

The fourth proportional to 13,252.32, 18,288.64 and 7,284.20 is: 10,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.32 : 18,288.64 = 7,284.20 : x
  2. Step 2: Convert to fraction form
    13,252.32/18,288.64 = 7,284.20/x
  3. Step 3: Cross multiply
    13,252.32x = 18,288.64 × 7,284.20
  4. Step 4: Simplify right side
    13,252.32x = 133,218,111.49
  5. Step 5: Solve for x
    x = 133,218,111.49/13,252.32
  6. Step 6: Final answer
    x = 10,052.44

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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.