Home / 12,663.36-18,997.34-6,341.55

Finding the Fourth Proportional to 12,663.36, 18,997.34 and 6,341.55

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Solution

The fourth proportional to 12,663.36, 18,997.34 and 6,341.55 is: 9,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.36 : 18,997.34 = 6,341.55 : x
  2. Step 2: Convert to fraction form
    12,663.36/18,997.34 = 6,341.55/x
  3. Step 3: Cross multiply
    12,663.36x = 18,997.34 × 6,341.55
  4. Step 4: Simplify right side
    12,663.36x = 120,472,581.48
  5. Step 5: Solve for x
    x = 120,472,581.48/12,663.36
  6. Step 6: Final answer
    x = 9,513.48

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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.