Home / 7,637.12-11,432.64-6,907.04

Finding the Fourth Proportional to 7,637.12, 11,432.64 and 6,907.04

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Solution

The fourth proportional to 7,637.12, 11,432.64 and 6,907.04 is: 10,339.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.12 : 11,432.64 = 6,907.04 : x
  2. Step 2: Convert to fraction form
    7,637.12/11,432.64 = 6,907.04/x
  3. Step 3: Cross multiply
    7,637.12x = 11,432.64 × 6,907.04
  4. Step 4: Simplify right side
    7,637.12x = 78,965,701.79
  5. Step 5: Solve for x
    x = 78,965,701.79/7,637.12
  6. Step 6: Final answer
    x = 10,339.72

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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.