Home / 15,698.34-21,663.72-8,625.29

Finding the Fourth Proportional to 15,698.34, 21,663.72 and 8,625.29

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Solution

The fourth proportional to 15,698.34, 21,663.72 and 8,625.29 is: 11,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.34 : 21,663.72 = 8,625.29 : x
  2. Step 2: Convert to fraction form
    15,698.34/21,663.72 = 8,625.29/x
  3. Step 3: Cross multiply
    15,698.34x = 21,663.72 × 8,625.29
  4. Step 4: Simplify right side
    15,698.34x = 186,855,759.16
  5. Step 5: Solve for x
    x = 186,855,759.16/15,698.34
  6. Step 6: Final answer
    x = 11,902.90

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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.