Home / 12,785.56-19,175.28-4,886.44

Finding the Fourth Proportional to 12,785.56, 19,175.28 and 4,886.44

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Solution

The fourth proportional to 12,785.56, 19,175.28 and 4,886.44 is: 7,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.56 : 19,175.28 = 4,886.44 : x
  2. Step 2: Convert to fraction form
    12,785.56/19,175.28 = 4,886.44/x
  3. Step 3: Cross multiply
    12,785.56x = 19,175.28 × 4,886.44
  4. Step 4: Simplify right side
    12,785.56x = 93,698,855.20
  5. Step 5: Solve for x
    x = 93,698,855.20/12,785.56
  6. Step 6: Final answer
    x = 7,328.49

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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.