Home / 15,697.35-21,663.39-8,623.83

Finding the Fourth Proportional to 15,697.35, 21,663.39 and 8,623.83

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Solution

The fourth proportional to 15,697.35, 21,663.39 and 8,623.83 is: 11,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.35 : 21,663.39 = 8,623.83 : x
  2. Step 2: Convert to fraction form
    15,697.35/21,663.39 = 8,623.83/x
  3. Step 3: Cross multiply
    15,697.35x = 21,663.39 × 8,623.83
  4. Step 4: Simplify right side
    15,697.35x = 186,821,392.58
  5. Step 5: Solve for x
    x = 186,821,392.58/15,697.35
  6. Step 6: Final answer
    x = 11,901.46

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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.