Home / 10,390.17-15,586.63-3,820.97

Finding the Fourth Proportional to 10,390.17, 15,586.63 and 3,820.97

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Solution

The fourth proportional to 10,390.17, 15,586.63 and 3,820.97 is: 5,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.17 : 15,586.63 = 3,820.97 : x
  2. Step 2: Convert to fraction form
    10,390.17/15,586.63 = 3,820.97/x
  3. Step 3: Cross multiply
    10,390.17x = 15,586.63 × 3,820.97
  4. Step 4: Simplify right side
    10,390.17x = 59,556,075.05
  5. Step 5: Solve for x
    x = 59,556,075.05/10,390.17
  6. Step 6: Final answer
    x = 5,731.96

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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.