Home / 13,120.15-19,675.14-4,352.71

Finding the Fourth Proportional to 13,120.15, 19,675.14 and 4,352.71

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Solution

The fourth proportional to 13,120.15, 19,675.14 and 4,352.71 is: 6,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.15 : 19,675.14 = 4,352.71 : x
  2. Step 2: Convert to fraction form
    13,120.15/19,675.14 = 4,352.71/x
  3. Step 3: Cross multiply
    13,120.15x = 19,675.14 × 4,352.71
  4. Step 4: Simplify right side
    13,120.15x = 85,640,178.63
  5. Step 5: Solve for x
    x = 85,640,178.63/13,120.15
  6. Step 6: Final answer
    x = 6,527.38

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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.