Home / 12,621.96-17,397.36-11,563.08

Finding the Fourth Proportional to 12,621.96, 17,397.36 and 11,563.08

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Solution

The fourth proportional to 12,621.96, 17,397.36 and 11,563.08 is: 15,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.96 : 17,397.36 = 11,563.08 : x
  2. Step 2: Convert to fraction form
    12,621.96/17,397.36 = 11,563.08/x
  3. Step 3: Cross multiply
    12,621.96x = 17,397.36 × 11,563.08
  4. Step 4: Simplify right side
    12,621.96x = 201,167,065.47
  5. Step 5: Solve for x
    x = 201,167,065.47/12,621.96
  6. Step 6: Final answer
    x = 15,937.86

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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.