Home / 13,557.48-20,342.42-8,021.68

Finding the Fourth Proportional to 13,557.48, 20,342.42 and 8,021.68

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Solution

The fourth proportional to 13,557.48, 20,342.42 and 8,021.68 is: 12,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.48 : 20,342.42 = 8,021.68 : x
  2. Step 2: Convert to fraction form
    13,557.48/20,342.42 = 8,021.68/x
  3. Step 3: Cross multiply
    13,557.48x = 20,342.42 × 8,021.68
  4. Step 4: Simplify right side
    13,557.48x = 163,180,383.67
  5. Step 5: Solve for x
    x = 163,180,383.67/13,557.48
  6. Step 6: Final answer
    x = 12,036.19

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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.