Home / 12,443.44-18,647.60-6,899.28

Finding the Fourth Proportional to 12,443.44, 18,647.60 and 6,899.28

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Solution

The fourth proportional to 12,443.44, 18,647.60 and 6,899.28 is: 10,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.44 : 18,647.60 = 6,899.28 : x
  2. Step 2: Convert to fraction form
    12,443.44/18,647.60 = 6,899.28/x
  3. Step 3: Cross multiply
    12,443.44x = 18,647.60 × 6,899.28
  4. Step 4: Simplify right side
    12,443.44x = 128,655,013.73
  5. Step 5: Solve for x
    x = 128,655,013.73/12,443.44
  6. Step 6: Final answer
    x = 10,339.18

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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.