Home / 13,919.52-19,209.18-7,631.49

Finding the Fourth Proportional to 13,919.52, 19,209.18 and 7,631.49

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Solution

The fourth proportional to 13,919.52, 19,209.18 and 7,631.49 is: 10,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.52 : 19,209.18 = 7,631.49 : x
  2. Step 2: Convert to fraction form
    13,919.52/19,209.18 = 7,631.49/x
  3. Step 3: Cross multiply
    13,919.52x = 19,209.18 × 7,631.49
  4. Step 4: Simplify right side
    13,919.52x = 146,594,665.08
  5. Step 5: Solve for x
    x = 146,594,665.08/13,919.52
  6. Step 6: Final answer
    x = 10,531.59

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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.