Home / 13,416.90-20,127.15-5,623.89

Finding the Fourth Proportional to 13,416.90, 20,127.15 and 5,623.89

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Solution

The fourth proportional to 13,416.90, 20,127.15 and 5,623.89 is: 8,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.90 : 20,127.15 = 5,623.89 : x
  2. Step 2: Convert to fraction form
    13,416.90/20,127.15 = 5,623.89/x
  3. Step 3: Cross multiply
    13,416.90x = 20,127.15 × 5,623.89
  4. Step 4: Simplify right side
    13,416.90x = 113,192,877.61
  5. Step 5: Solve for x
    x = 113,192,877.61/13,416.90
  6. Step 6: Final answer
    x = 8,436.59

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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.