Home / 8,374.98-11,555.11-5,392.55

Finding the Fourth Proportional to 8,374.98, 11,555.11 and 5,392.55

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Solution

The fourth proportional to 8,374.98, 11,555.11 and 5,392.55 is: 7,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.98 : 11,555.11 = 5,392.55 : x
  2. Step 2: Convert to fraction form
    8,374.98/11,555.11 = 5,392.55/x
  3. Step 3: Cross multiply
    8,374.98x = 11,555.11 × 5,392.55
  4. Step 4: Simplify right side
    8,374.98x = 62,311,437.17
  5. Step 5: Solve for x
    x = 62,311,437.17/8,374.98
  6. Step 6: Final answer
    x = 7,440.19

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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.