Home / 12,921.26-19,356.51-7,357.64

Finding the Fourth Proportional to 12,921.26, 19,356.51 and 7,357.64

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Solution

The fourth proportional to 12,921.26, 19,356.51 and 7,357.64 is: 11,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.26 : 19,356.51 = 7,357.64 : x
  2. Step 2: Convert to fraction form
    12,921.26/19,356.51 = 7,357.64/x
  3. Step 3: Cross multiply
    12,921.26x = 19,356.51 × 7,357.64
  4. Step 4: Simplify right side
    12,921.26x = 142,418,232.24
  5. Step 5: Solve for x
    x = 142,418,232.24/12,921.26
  6. Step 6: Final answer
    x = 11,022.01

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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.