Home / 19,471.24-29,208.42-7,778.04

Finding the Fourth Proportional to 19,471.24, 29,208.42 and 7,778.04

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Solution

The fourth proportional to 19,471.24, 29,208.42 and 7,778.04 is: 11,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.24 : 29,208.42 = 7,778.04 : x
  2. Step 2: Convert to fraction form
    19,471.24/29,208.42 = 7,778.04/x
  3. Step 3: Cross multiply
    19,471.24x = 29,208.42 × 7,778.04
  4. Step 4: Simplify right side
    19,471.24x = 227,184,259.10
  5. Step 5: Solve for x
    x = 227,184,259.10/19,471.24
  6. Step 6: Final answer
    x = 11,667.68

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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.