Home / 12,756.53-19,134.81-4,857.19

Finding the Fourth Proportional to 12,756.53, 19,134.81 and 4,857.19

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Solution

The fourth proportional to 12,756.53, 19,134.81 and 4,857.19 is: 7,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.53 : 19,134.81 = 4,857.19 : x
  2. Step 2: Convert to fraction form
    12,756.53/19,134.81 = 4,857.19/x
  3. Step 3: Cross multiply
    12,756.53x = 19,134.81 × 4,857.19
  4. Step 4: Simplify right side
    12,756.53x = 92,941,359.95
  5. Step 5: Solve for x
    x = 92,941,359.95/12,756.53
  6. Step 6: Final answer
    x = 7,285.79

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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.