Home / 13,571.02-20,339.52-7,730.92

Finding the Fourth Proportional to 13,571.02, 20,339.52 and 7,730.92

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Solution

The fourth proportional to 13,571.02, 20,339.52 and 7,730.92 is: 11,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.02 : 20,339.52 = 7,730.92 : x
  2. Step 2: Convert to fraction form
    13,571.02/20,339.52 = 7,730.92/x
  3. Step 3: Cross multiply
    13,571.02x = 20,339.52 × 7,730.92
  4. Step 4: Simplify right side
    13,571.02x = 157,243,201.96
  5. Step 5: Solve for x
    x = 157,243,201.96/13,571.02
  6. Step 6: Final answer
    x = 11,586.69

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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.