Home / 13,590.98-20,381.00-4,227.89

Finding the Fourth Proportional to 13,590.98, 20,381.00 and 4,227.89

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Solution

The fourth proportional to 13,590.98, 20,381.00 and 4,227.89 is: 6,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.98 : 20,381.00 = 4,227.89 : x
  2. Step 2: Convert to fraction form
    13,590.98/20,381.00 = 4,227.89/x
  3. Step 3: Cross multiply
    13,590.98x = 20,381.00 × 4,227.89
  4. Step 4: Simplify right side
    13,590.98x = 86,168,503.05
  5. Step 5: Solve for x
    x = 86,168,503.05/13,590.98
  6. Step 6: Final answer
    x = 6,340.13

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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.