Home / 10,212.05-15,305.72-4,663.95

Finding the Fourth Proportional to 10,212.05, 15,305.72 and 4,663.95

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Solution

The fourth proportional to 10,212.05, 15,305.72 and 4,663.95 is: 6,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.05 : 15,305.72 = 4,663.95 : x
  2. Step 2: Convert to fraction form
    10,212.05/15,305.72 = 4,663.95/x
  3. Step 3: Cross multiply
    10,212.05x = 15,305.72 × 4,663.95
  4. Step 4: Simplify right side
    10,212.05x = 71,385,089.47
  5. Step 5: Solve for x
    x = 71,385,089.47/10,212.05
  6. Step 6: Final answer
    x = 6,990.28

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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.