Home / 12,299.40-18,444.78-5,728.68

Finding the Fourth Proportional to 12,299.40, 18,444.78 and 5,728.68

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Solution

The fourth proportional to 12,299.40, 18,444.78 and 5,728.68 is: 8,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.40 : 18,444.78 = 5,728.68 : x
  2. Step 2: Convert to fraction form
    12,299.40/18,444.78 = 5,728.68/x
  3. Step 3: Cross multiply
    12,299.40x = 18,444.78 × 5,728.68
  4. Step 4: Simplify right side
    12,299.40x = 105,664,242.29
  5. Step 5: Solve for x
    x = 105,664,242.29/12,299.40
  6. Step 6: Final answer
    x = 8,591.01

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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.