Home / 13,253.40-19,879.65-3,392.77

Finding the Fourth Proportional to 13,253.40, 19,879.65 and 3,392.77

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Solution

The fourth proportional to 13,253.40, 19,879.65 and 3,392.77 is: 5,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.40 : 19,879.65 = 3,392.77 : x
  2. Step 2: Convert to fraction form
    13,253.40/19,879.65 = 3,392.77/x
  3. Step 3: Cross multiply
    13,253.40x = 19,879.65 × 3,392.77
  4. Step 4: Simplify right side
    13,253.40x = 67,447,030.43
  5. Step 5: Solve for x
    x = 67,447,030.43/13,253.40
  6. Step 6: Final answer
    x = 5,089.03

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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.