Home / 10,307.85-15,462.38-2,912.14

Finding the Fourth Proportional to 10,307.85, 15,462.38 and 2,912.14

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Solution

The fourth proportional to 10,307.85, 15,462.38 and 2,912.14 is: 4,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.85 : 15,462.38 = 2,912.14 : x
  2. Step 2: Convert to fraction form
    10,307.85/15,462.38 = 2,912.14/x
  3. Step 3: Cross multiply
    10,307.85x = 15,462.38 × 2,912.14
  4. Step 4: Simplify right side
    10,307.85x = 45,028,615.29
  5. Step 5: Solve for x
    x = 45,028,615.29/10,307.85
  6. Step 6: Final answer
    x = 4,368.38

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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.