Home / 12,744.02-19,112.68-5,720.10

Finding the Fourth Proportional to 12,744.02, 19,112.68 and 5,720.10

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Solution

The fourth proportional to 12,744.02, 19,112.68 and 5,720.10 is: 8,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.02 : 19,112.68 = 5,720.10 : x
  2. Step 2: Convert to fraction form
    12,744.02/19,112.68 = 5,720.10/x
  3. Step 3: Cross multiply
    12,744.02x = 19,112.68 × 5,720.10
  4. Step 4: Simplify right side
    12,744.02x = 109,326,440.87
  5. Step 5: Solve for x
    x = 109,326,440.87/12,744.02
  6. Step 6: Final answer
    x = 8,578.65

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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.