Home / 13,255.77-19,871.28-4,484.55

Finding the Fourth Proportional to 13,255.77, 19,871.28 and 4,484.55

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Solution

The fourth proportional to 13,255.77, 19,871.28 and 4,484.55 is: 6,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.77 : 19,871.28 = 4,484.55 : x
  2. Step 2: Convert to fraction form
    13,255.77/19,871.28 = 4,484.55/x
  3. Step 3: Cross multiply
    13,255.77x = 19,871.28 × 4,484.55
  4. Step 4: Simplify right side
    13,255.77x = 89,113,748.72
  5. Step 5: Solve for x
    x = 89,113,748.72/13,255.77
  6. Step 6: Final answer
    x = 6,722.64

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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.