Home / 8,704.40-13,055.28-2,861.12

Finding the Fourth Proportional to 8,704.40, 13,055.28 and 2,861.12

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Solution

The fourth proportional to 8,704.40, 13,055.28 and 2,861.12 is: 4,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.40 : 13,055.28 = 2,861.12 : x
  2. Step 2: Convert to fraction form
    8,704.40/13,055.28 = 2,861.12/x
  3. Step 3: Cross multiply
    8,704.40x = 13,055.28 × 2,861.12
  4. Step 4: Simplify right side
    8,704.40x = 37,352,722.71
  5. Step 5: Solve for x
    x = 37,352,722.71/8,704.40
  6. Step 6: Final answer
    x = 4,291.25

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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.