Home / 13,515.89-20,274.90-4,752.77

Finding the Fourth Proportional to 13,515.89, 20,274.90 and 4,752.77

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Solution

The fourth proportional to 13,515.89, 20,274.90 and 4,752.77 is: 7,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.89 : 20,274.90 = 4,752.77 : x
  2. Step 2: Convert to fraction form
    13,515.89/20,274.90 = 4,752.77/x
  3. Step 3: Cross multiply
    13,515.89x = 20,274.90 × 4,752.77
  4. Step 4: Simplify right side
    13,515.89x = 96,361,936.47
  5. Step 5: Solve for x
    x = 96,361,936.47/13,515.89
  6. Step 6: Final answer
    x = 7,129.53

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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.