Home / 13,253.05-19,879.47-3,392.30

Finding the Fourth Proportional to 13,253.05, 19,879.47 and 3,392.30

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Solution

The fourth proportional to 13,253.05, 19,879.47 and 3,392.30 is: 5,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.05 : 19,879.47 = 3,392.30 : x
  2. Step 2: Convert to fraction form
    13,253.05/19,879.47 = 3,392.30/x
  3. Step 3: Cross multiply
    13,253.05x = 19,879.47 × 3,392.30
  4. Step 4: Simplify right side
    13,253.05x = 67,437,126.08
  5. Step 5: Solve for x
    x = 67,437,126.08/13,253.05
  6. Step 6: Final answer
    x = 5,088.42

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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.