Home / 13,122.91-19,682.47-4,356.69

Finding the Fourth Proportional to 13,122.91, 19,682.47 and 4,356.69

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Solution

The fourth proportional to 13,122.91, 19,682.47 and 4,356.69 is: 6,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.91 : 19,682.47 = 4,356.69 : x
  2. Step 2: Convert to fraction form
    13,122.91/19,682.47 = 4,356.69/x
  3. Step 3: Cross multiply
    13,122.91x = 19,682.47 × 4,356.69
  4. Step 4: Simplify right side
    13,122.91x = 85,750,420.22
  5. Step 5: Solve for x
    x = 85,750,420.22/13,122.91
  6. Step 6: Final answer
    x = 6,534.41

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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.