Home / 12,927.78-19,393.64-6,599.20

Finding the Fourth Proportional to 12,927.78, 19,393.64 and 6,599.20

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Solution

The fourth proportional to 12,927.78, 19,393.64 and 6,599.20 is: 9,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.78 : 19,393.64 = 6,599.20 : x
  2. Step 2: Convert to fraction form
    12,927.78/19,393.64 = 6,599.20/x
  3. Step 3: Cross multiply
    12,927.78x = 19,393.64 × 6,599.20
  4. Step 4: Simplify right side
    12,927.78x = 127,982,509.09
  5. Step 5: Solve for x
    x = 127,982,509.09/12,927.78
  6. Step 6: Final answer
    x = 9,899.81

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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.