Home / 12,380.79-18,549.58-10,314.08

Finding the Fourth Proportional to 12,380.79, 18,549.58 and 10,314.08

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Solution

The fourth proportional to 12,380.79, 18,549.58 and 10,314.08 is: 15,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.79 : 18,549.58 = 10,314.08 : x
  2. Step 2: Convert to fraction form
    12,380.79/18,549.58 = 10,314.08/x
  3. Step 3: Cross multiply
    12,380.79x = 18,549.58 × 10,314.08
  4. Step 4: Simplify right side
    12,380.79x = 191,321,852.09
  5. Step 5: Solve for x
    x = 191,321,852.09/12,380.79
  6. Step 6: Final answer
    x = 15,453.12

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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.