Home / 8,376.40-12,567.48-5,252.65

Finding the Fourth Proportional to 8,376.40, 12,567.48 and 5,252.65

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Solution

The fourth proportional to 8,376.40, 12,567.48 and 5,252.65 is: 7,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.40 : 12,567.48 = 5,252.65 : x
  2. Step 2: Convert to fraction form
    8,376.40/12,567.48 = 5,252.65/x
  3. Step 3: Cross multiply
    8,376.40x = 12,567.48 × 5,252.65
  4. Step 4: Simplify right side
    8,376.40x = 66,012,573.82
  5. Step 5: Solve for x
    x = 66,012,573.82/8,376.40
  6. Step 6: Final answer
    x = 7,880.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.