Home / 13,027.79-19,533.81-5,120.84

Finding the Fourth Proportional to 13,027.79, 19,533.81 and 5,120.84

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Solution

The fourth proportional to 13,027.79, 19,533.81 and 5,120.84 is: 7,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.79 : 19,533.81 = 5,120.84 : x
  2. Step 2: Convert to fraction form
    13,027.79/19,533.81 = 5,120.84/x
  3. Step 3: Cross multiply
    13,027.79x = 19,533.81 × 5,120.84
  4. Step 4: Simplify right side
    13,027.79x = 100,029,515.60
  5. Step 5: Solve for x
    x = 100,029,515.60/13,027.79
  6. Step 6: Final answer
    x = 7,678.16

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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.