Home / 8,326.40-12,478.64-4,626.72

Finding the Fourth Proportional to 8,326.40, 12,478.64 and 4,626.72

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Solution

The fourth proportional to 8,326.40, 12,478.64 and 4,626.72 is: 6,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.40 : 12,478.64 = 4,626.72 : x
  2. Step 2: Convert to fraction form
    8,326.40/12,478.64 = 4,626.72/x
  3. Step 3: Cross multiply
    8,326.40x = 12,478.64 × 4,626.72
  4. Step 4: Simplify right side
    8,326.40x = 57,735,150.13
  5. Step 5: Solve for x
    x = 57,735,150.13/8,326.40
  6. Step 6: Final answer
    x = 6,933.99

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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.