Home / 8,785.32-13,175.40-3,520.32

Finding the Fourth Proportional to 8,785.32, 13,175.40 and 3,520.32

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Solution

The fourth proportional to 8,785.32, 13,175.40 and 3,520.32 is: 5,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.32 : 13,175.40 = 3,520.32 : x
  2. Step 2: Convert to fraction form
    8,785.32/13,175.40 = 3,520.32/x
  3. Step 3: Cross multiply
    8,785.32x = 13,175.40 × 3,520.32
  4. Step 4: Simplify right side
    8,785.32x = 46,381,624.13
  5. Step 5: Solve for x
    x = 46,381,624.13/8,785.32
  6. Step 6: Final answer
    x = 5,279.45

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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.