Home / 15,506.59-21,399.24-9,217.75

Finding the Fourth Proportional to 15,506.59, 21,399.24 and 9,217.75

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Solution

The fourth proportional to 15,506.59, 21,399.24 and 9,217.75 is: 12,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.59 : 21,399.24 = 9,217.75 : x
  2. Step 2: Convert to fraction form
    15,506.59/21,399.24 = 9,217.75/x
  3. Step 3: Cross multiply
    15,506.59x = 21,399.24 × 9,217.75
  4. Step 4: Simplify right side
    15,506.59x = 197,252,844.51
  5. Step 5: Solve for x
    x = 197,252,844.51/15,506.59
  6. Step 6: Final answer
    x = 12,720.58

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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.