Home / 8,520.08-12,785.04-3,589.40

Finding the Fourth Proportional to 8,520.08, 12,785.04 and 3,589.40

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Solution

The fourth proportional to 8,520.08, 12,785.04 and 3,589.40 is: 5,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.08 : 12,785.04 = 3,589.40 : x
  2. Step 2: Convert to fraction form
    8,520.08/12,785.04 = 3,589.40/x
  3. Step 3: Cross multiply
    8,520.08x = 12,785.04 × 3,589.40
  4. Step 4: Simplify right side
    8,520.08x = 45,890,622.58
  5. Step 5: Solve for x
    x = 45,890,622.58/8,520.08
  6. Step 6: Final answer
    x = 5,386.17

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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.