Home / 11,142.36-15,372.65-6,358.87

Finding the Fourth Proportional to 11,142.36, 15,372.65 and 6,358.87

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Solution

The fourth proportional to 11,142.36, 15,372.65 and 6,358.87 is: 8,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.36 : 15,372.65 = 6,358.87 : x
  2. Step 2: Convert to fraction form
    11,142.36/15,372.65 = 6,358.87/x
  3. Step 3: Cross multiply
    11,142.36x = 15,372.65 × 6,358.87
  4. Step 4: Simplify right side
    11,142.36x = 97,752,606.04
  5. Step 5: Solve for x
    x = 97,752,606.04/11,142.36
  6. Step 6: Final answer
    x = 8,773.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.