Home / 13,612.95-20,420.58-3,752.23

Finding the Fourth Proportional to 13,612.95, 20,420.58 and 3,752.23

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Solution

The fourth proportional to 13,612.95, 20,420.58 and 3,752.23 is: 5,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.95 : 20,420.58 = 3,752.23 : x
  2. Step 2: Convert to fraction form
    13,612.95/20,420.58 = 3,752.23/x
  3. Step 3: Cross multiply
    13,612.95x = 20,420.58 × 3,752.23
  4. Step 4: Simplify right side
    13,612.95x = 76,622,712.89
  5. Step 5: Solve for x
    x = 76,622,712.89/13,612.95
  6. Step 6: Final answer
    x = 5,628.66

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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.