Home / 10,637.80-15,946.94-4,309.20

Finding the Fourth Proportional to 10,637.80, 15,946.94 and 4,309.20

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Solution

The fourth proportional to 10,637.80, 15,946.94 and 4,309.20 is: 6,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637.80 : 15,946.94 = 4,309.20 : x
  2. Step 2: Convert to fraction form
    10,637.80/15,946.94 = 4,309.20/x
  3. Step 3: Cross multiply
    10,637.80x = 15,946.94 × 4,309.20
  4. Step 4: Simplify right side
    10,637.80x = 68,718,564.62
  5. Step 5: Solve for x
    x = 68,718,564.62/10,637.80
  6. Step 6: Final answer
    x = 6,459.85

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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.