Home / 13,077.40-19,615.91-3,216.76

Finding the Fourth Proportional to 13,077.40, 19,615.91 and 3,216.76

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Solution

The fourth proportional to 13,077.40, 19,615.91 and 3,216.76 is: 4,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.40 : 19,615.91 = 3,216.76 : x
  2. Step 2: Convert to fraction form
    13,077.40/19,615.91 = 3,216.76/x
  3. Step 3: Cross multiply
    13,077.40x = 19,615.91 × 3,216.76
  4. Step 4: Simplify right side
    13,077.40x = 63,099,719.87
  5. Step 5: Solve for x
    x = 63,099,719.87/13,077.40
  6. Step 6: Final answer
    x = 4,825.10

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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.