Home / 19,358.52-29,015.28-8,812.68

Finding the Fourth Proportional to 19,358.52, 29,015.28 and 8,812.68

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Solution

The fourth proportional to 19,358.52, 29,015.28 and 8,812.68 is: 13,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.52 : 29,015.28 = 8,812.68 : x
  2. Step 2: Convert to fraction form
    19,358.52/29,015.28 = 8,812.68/x
  3. Step 3: Cross multiply
    19,358.52x = 29,015.28 × 8,812.68
  4. Step 4: Simplify right side
    19,358.52x = 255,702,377.75
  5. Step 5: Solve for x
    x = 255,702,377.75/19,358.52
  6. Step 6: Final answer
    x = 13,208.78

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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.