Home / 15,618.62-21,563.07-9,658.28

Finding the Fourth Proportional to 15,618.62, 21,563.07 and 9,658.28

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Solution

The fourth proportional to 15,618.62, 21,563.07 and 9,658.28 is: 13,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.62 : 21,563.07 = 9,658.28 : x
  2. Step 2: Convert to fraction form
    15,618.62/21,563.07 = 9,658.28/x
  3. Step 3: Cross multiply
    15,618.62x = 21,563.07 × 9,658.28
  4. Step 4: Simplify right side
    15,618.62x = 208,262,167.72
  5. Step 5: Solve for x
    x = 208,262,167.72/15,618.62
  6. Step 6: Final answer
    x = 13,334.22

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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.