Home / 10,206.28-15,309.42-2,810.81

Finding the Fourth Proportional to 10,206.28, 15,309.42 and 2,810.81

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Solution

The fourth proportional to 10,206.28, 15,309.42 and 2,810.81 is: 4,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.28 : 15,309.42 = 2,810.81 : x
  2. Step 2: Convert to fraction form
    10,206.28/15,309.42 = 2,810.81/x
  3. Step 3: Cross multiply
    10,206.28x = 15,309.42 × 2,810.81
  4. Step 4: Simplify right side
    10,206.28x = 43,031,909.10
  5. Step 5: Solve for x
    x = 43,031,909.10/10,206.28
  6. Step 6: Final answer
    x = 4,216.22

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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.