Home / 12,756.53-19,140.64-5,738.38

Finding the Fourth Proportional to 12,756.53, 19,140.64 and 5,738.38

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Solution

The fourth proportional to 12,756.53, 19,140.64 and 5,738.38 is: 8,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.53 : 19,140.64 = 5,738.38 : x
  2. Step 2: Convert to fraction form
    12,756.53/19,140.64 = 5,738.38/x
  3. Step 3: Cross multiply
    12,756.53x = 19,140.64 × 5,738.38
  4. Step 4: Simplify right side
    12,756.53x = 109,836,265.76
  5. Step 5: Solve for x
    x = 109,836,265.76/12,756.53
  6. Step 6: Final answer
    x = 8,610.20

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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.