Home / 12,317.48-18,487.20-5,747.36

Finding the Fourth Proportional to 12,317.48, 18,487.20 and 5,747.36

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Solution

The fourth proportional to 12,317.48, 18,487.20 and 5,747.36 is: 8,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.48 : 18,487.20 = 5,747.36 : x
  2. Step 2: Convert to fraction form
    12,317.48/18,487.20 = 5,747.36/x
  3. Step 3: Cross multiply
    12,317.48x = 18,487.20 × 5,747.36
  4. Step 4: Simplify right side
    12,317.48x = 106,252,593.79
  5. Step 5: Solve for x
    x = 106,252,593.79/12,317.48
  6. Step 6: Final answer
    x = 8,626.16

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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.