Home / 18,312.35-27,466.09-5,165.78

Finding the Fourth Proportional to 18,312.35, 27,466.09 and 5,165.78

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Solution

The fourth proportional to 18,312.35, 27,466.09 and 5,165.78 is: 7,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.35 : 27,466.09 = 5,165.78 : x
  2. Step 2: Convert to fraction form
    18,312.35/27,466.09 = 5,165.78/x
  3. Step 3: Cross multiply
    18,312.35x = 27,466.09 × 5,165.78
  4. Step 4: Simplify right side
    18,312.35x = 141,883,628.16
  5. Step 5: Solve for x
    x = 141,883,628.16/18,312.35
  6. Step 6: Final answer
    x = 7,747.98

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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.