Home / 8,372.48-11,555.62-5,539.91

Finding the Fourth Proportional to 8,372.48, 11,555.62 and 5,539.91

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Solution

The fourth proportional to 8,372.48, 11,555.62 and 5,539.91 is: 7,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.48 : 11,555.62 = 5,539.91 : x
  2. Step 2: Convert to fraction form
    8,372.48/11,555.62 = 5,539.91/x
  3. Step 3: Cross multiply
    8,372.48x = 11,555.62 × 5,539.91
  4. Step 4: Simplify right side
    8,372.48x = 64,017,094.79
  5. Step 5: Solve for x
    x = 64,017,094.79/8,372.48
  6. Step 6: Final answer
    x = 7,646.13

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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.