Home / 14,422.32-21,615.96-6,620.40

Finding the Fourth Proportional to 14,422.32, 21,615.96 and 6,620.40

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Solution

The fourth proportional to 14,422.32, 21,615.96 and 6,620.40 is: 9,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.32 : 21,615.96 = 6,620.40 : x
  2. Step 2: Convert to fraction form
    14,422.32/21,615.96 = 6,620.40/x
  3. Step 3: Cross multiply
    14,422.32x = 21,615.96 × 6,620.40
  4. Step 4: Simplify right side
    14,422.32x = 143,106,301.58
  5. Step 5: Solve for x
    x = 143,106,301.58/14,422.32
  6. Step 6: Final answer
    x = 9,922.56

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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.