Home / 13,515.66-20,240.69-9,997.02

Finding the Fourth Proportional to 13,515.66, 20,240.69 and 9,997.02

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Solution

The fourth proportional to 13,515.66, 20,240.69 and 9,997.02 is: 14,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.66 : 20,240.69 = 9,997.02 : x
  2. Step 2: Convert to fraction form
    13,515.66/20,240.69 = 9,997.02/x
  3. Step 3: Cross multiply
    13,515.66x = 20,240.69 × 9,997.02
  4. Step 4: Simplify right side
    13,515.66x = 202,346,532.76
  5. Step 5: Solve for x
    x = 202,346,532.76/13,515.66
  6. Step 6: Final answer
    x = 14,971.27

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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.