Home / 14,218.48-21,342.32-13,693.60

Finding the Fourth Proportional to 14,218.48, 21,342.32 and 13,693.60

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Solution

The fourth proportional to 14,218.48, 21,342.32 and 13,693.60 is: 20,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.48 : 21,342.32 = 13,693.60 : x
  2. Step 2: Convert to fraction form
    14,218.48/21,342.32 = 13,693.60/x
  3. Step 3: Cross multiply
    14,218.48x = 21,342.32 × 13,693.60
  4. Step 4: Simplify right side
    14,218.48x = 292,253,193.15
  5. Step 5: Solve for x
    x = 292,253,193.15/14,218.48
  6. Step 6: Final answer
    x = 20,554.46

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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.