Home / 15,376.37-21,221.42-8,663.32

Finding the Fourth Proportional to 15,376.37, 21,221.42 and 8,663.32

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Solution

The fourth proportional to 15,376.37, 21,221.42 and 8,663.32 is: 11,956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.37 : 21,221.42 = 8,663.32 : x
  2. Step 2: Convert to fraction form
    15,376.37/21,221.42 = 8,663.32/x
  3. Step 3: Cross multiply
    15,376.37x = 21,221.42 × 8,663.32
  4. Step 4: Simplify right side
    15,376.37x = 183,847,855.94
  5. Step 5: Solve for x
    x = 183,847,855.94/15,376.37
  6. Step 6: Final answer
    x = 11,956.52

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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.