Home / 8,374.96-11,555.82-5,390.08

Finding the Fourth Proportional to 8,374.96, 11,555.82 and 5,390.08

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Solution

The fourth proportional to 8,374.96, 11,555.82 and 5,390.08 is: 7,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.96 : 11,555.82 = 5,390.08 : x
  2. Step 2: Convert to fraction form
    8,374.96/11,555.82 = 5,390.08/x
  3. Step 3: Cross multiply
    8,374.96x = 11,555.82 × 5,390.08
  4. Step 4: Simplify right side
    8,374.96x = 62,286,794.27
  5. Step 5: Solve for x
    x = 62,286,794.27/8,374.96
  6. Step 6: Final answer
    x = 7,437.26

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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.