Home / 13,657.68-20,490.44-4,893.21

Finding the Fourth Proportional to 13,657.68, 20,490.44 and 4,893.21

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Solution

The fourth proportional to 13,657.68, 20,490.44 and 4,893.21 is: 7,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.68 : 20,490.44 = 4,893.21 : x
  2. Step 2: Convert to fraction form
    13,657.68/20,490.44 = 4,893.21/x
  3. Step 3: Cross multiply
    13,657.68x = 20,490.44 × 4,893.21
  4. Step 4: Simplify right side
    13,657.68x = 100,264,001.45
  5. Step 5: Solve for x
    x = 100,264,001.45/13,657.68
  6. Step 6: Final answer
    x = 7,341.22

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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.