Home / 18,404.81-27,606.64-5,257.20

Finding the Fourth Proportional to 18,404.81, 27,606.64 and 5,257.20

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Solution

The fourth proportional to 18,404.81, 27,606.64 and 5,257.20 is: 7,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.81 : 27,606.64 = 5,257.20 : x
  2. Step 2: Convert to fraction form
    18,404.81/27,606.64 = 5,257.20/x
  3. Step 3: Cross multiply
    18,404.81x = 27,606.64 × 5,257.20
  4. Step 4: Simplify right side
    18,404.81x = 145,133,627.81
  5. Step 5: Solve for x
    x = 145,133,627.81/18,404.81
  6. Step 6: Final answer
    x = 7,885.64

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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.