Home / 8,764.28-13,148.51-2,920.94

Finding the Fourth Proportional to 8,764.28, 13,148.51 and 2,920.94

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Solution

The fourth proportional to 8,764.28, 13,148.51 and 2,920.94 is: 4,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.28 : 13,148.51 = 2,920.94 : x
  2. Step 2: Convert to fraction form
    8,764.28/13,148.51 = 2,920.94/x
  3. Step 3: Cross multiply
    8,764.28x = 13,148.51 × 2,920.94
  4. Step 4: Simplify right side
    8,764.28x = 38,405,928.45
  5. Step 5: Solve for x
    x = 38,405,928.45/8,764.28
  6. Step 6: Final answer
    x = 4,382.10

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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.