Home / 13,573.83-20,356.40-12,688.32

Finding the Fourth Proportional to 13,573.83, 20,356.40 and 12,688.32

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Solution

The fourth proportional to 13,573.83, 20,356.40 and 12,688.32 is: 19,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.83 : 20,356.40 = 12,688.32 : x
  2. Step 2: Convert to fraction form
    13,573.83/20,356.40 = 12,688.32/x
  3. Step 3: Cross multiply
    13,573.83x = 20,356.40 × 12,688.32
  4. Step 4: Simplify right side
    13,573.83x = 258,288,550.21
  5. Step 5: Solve for x
    x = 258,288,550.21/13,573.83
  6. Step 6: Final answer
    x = 19,028.42

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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.