Home / 19,113.36-28,662.71-7,423.85

Finding the Fourth Proportional to 19,113.36, 28,662.71 and 7,423.85

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Solution

The fourth proportional to 19,113.36, 28,662.71 and 7,423.85 is: 11,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.36 : 28,662.71 = 7,423.85 : x
  2. Step 2: Convert to fraction form
    19,113.36/28,662.71 = 7,423.85/x
  3. Step 3: Cross multiply
    19,113.36x = 28,662.71 × 7,423.85
  4. Step 4: Simplify right side
    19,113.36x = 212,787,479.20
  5. Step 5: Solve for x
    x = 212,787,479.20/19,113.36
  6. Step 6: Final answer
    x = 11,132.92

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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.