Home / 14,422.40-19,899.44-9,944.72

Finding the Fourth Proportional to 14,422.40, 19,899.44 and 9,944.72

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Solution

The fourth proportional to 14,422.40, 19,899.44 and 9,944.72 is: 13,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.40 : 19,899.44 = 9,944.72 : x
  2. Step 2: Convert to fraction form
    14,422.40/19,899.44 = 9,944.72/x
  3. Step 3: Cross multiply
    14,422.40x = 19,899.44 × 9,944.72
  4. Step 4: Simplify right side
    14,422.40x = 197,894,358.96
  5. Step 5: Solve for x
    x = 197,894,358.96/14,422.40
  6. Step 6: Final answer
    x = 13,721.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.