Home / 14,293.36-19,724.36-7,919.68

Finding the Fourth Proportional to 14,293.36, 19,724.36 and 7,919.68

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Solution

The fourth proportional to 14,293.36, 19,724.36 and 7,919.68 is: 10,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.36 : 19,724.36 = 7,919.68 : x
  2. Step 2: Convert to fraction form
    14,293.36/19,724.36 = 7,919.68/x
  3. Step 3: Cross multiply
    14,293.36x = 19,724.36 × 7,919.68
  4. Step 4: Simplify right side
    14,293.36x = 156,210,619.40
  5. Step 5: Solve for x
    x = 156,210,619.40/14,293.36
  6. Step 6: Final answer
    x = 10,928.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.