Home / 10,206.15-15,309.38-2,810.53

Finding the Fourth Proportional to 10,206.15, 15,309.38 and 2,810.53

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Solution

The fourth proportional to 10,206.15, 15,309.38 and 2,810.53 is: 4,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.15 : 15,309.38 = 2,810.53 : x
  2. Step 2: Convert to fraction form
    10,206.15/15,309.38 = 2,810.53/x
  3. Step 3: Cross multiply
    10,206.15x = 15,309.38 × 2,810.53
  4. Step 4: Simplify right side
    10,206.15x = 43,027,471.77
  5. Step 5: Solve for x
    x = 43,027,471.77/10,206.15
  6. Step 6: Final answer
    x = 4,215.84

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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.