Home / 9,742.48-13,445.85-6,388.09

Finding the Fourth Proportional to 9,742.48, 13,445.85 and 6,388.09

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Solution

The fourth proportional to 9,742.48, 13,445.85 and 6,388.09 is: 8,816.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,742.48 : 13,445.85 = 6,388.09 : x
  2. Step 2: Convert to fraction form
    9,742.48/13,445.85 = 6,388.09/x
  3. Step 3: Cross multiply
    9,742.48x = 13,445.85 × 6,388.09
  4. Step 4: Simplify right side
    9,742.48x = 85,893,299.93
  5. Step 5: Solve for x
    x = 85,893,299.93/9,742.48
  6. Step 6: Final answer
    x = 8,816.37

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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.