Home / 8,785.20-13,064.74-8,508.32

Finding the Fourth Proportional to 8,785.20, 13,064.74 and 8,508.32

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Solution

The fourth proportional to 8,785.20, 13,064.74 and 8,508.32 is: 12,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.20 : 13,064.74 = 8,508.32 : x
  2. Step 2: Convert to fraction form
    8,785.20/13,064.74 = 8,508.32/x
  3. Step 3: Cross multiply
    8,785.20x = 13,064.74 × 8,508.32
  4. Step 4: Simplify right side
    8,785.20x = 111,158,988.64
  5. Step 5: Solve for x
    x = 111,158,988.64/8,785.20
  6. Step 6: Final answer
    x = 12,652.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.