Home / 18,376.32-27,549.12-12,813.36

Finding the Fourth Proportional to 18,376.32, 27,549.12 and 12,813.36

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Solution

The fourth proportional to 18,376.32, 27,549.12 and 12,813.36 is: 19,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.32 : 27,549.12 = 12,813.36 : x
  2. Step 2: Convert to fraction form
    18,376.32/27,549.12 = 12,813.36/x
  3. Step 3: Cross multiply
    18,376.32x = 27,549.12 × 12,813.36
  4. Step 4: Simplify right side
    18,376.32x = 352,996,792.24
  5. Step 5: Solve for x
    x = 352,996,792.24/18,376.32
  6. Step 6: Final answer
    x = 19,209.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.