Home / 12,919.26-19,353.51-7,355.64

Finding the Fourth Proportional to 12,919.26, 19,353.51 and 7,355.64

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Solution

The fourth proportional to 12,919.26, 19,353.51 and 7,355.64 is: 11,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.26 : 19,353.51 = 7,355.64 : x
  2. Step 2: Convert to fraction form
    12,919.26/19,353.51 = 7,355.64/x
  3. Step 3: Cross multiply
    12,919.26x = 19,353.51 × 7,355.64
  4. Step 4: Simplify right side
    12,919.26x = 142,357,452.30
  5. Step 5: Solve for x
    x = 142,357,452.30/12,919.26
  6. Step 6: Final answer
    x = 11,019.01

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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.