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Finding the Fourth Proportional to 15,108.98, 22,663.92 and 7,212.32

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Solution

The fourth proportional to 15,108.98, 22,663.92 and 7,212.32 is: 10,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.98 : 22,663.92 = 7,212.32 : x
  2. Step 2: Convert to fraction form
    15,108.98/22,663.92 = 7,212.32/x
  3. Step 3: Cross multiply
    15,108.98x = 22,663.92 × 7,212.32
  4. Step 4: Simplify right side
    15,108.98x = 163,459,443.49
  5. Step 5: Solve for x
    x = 163,459,443.49/15,108.98
  6. Step 6: Final answer
    x = 10,818.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.