Home / 12,403.89-18,605.84-4,805.01

Finding the Fourth Proportional to 12,403.89, 18,605.84 and 4,805.01

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Solution

The fourth proportional to 12,403.89, 18,605.84 and 4,805.01 is: 7,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.89 : 18,605.84 = 4,805.01 : x
  2. Step 2: Convert to fraction form
    12,403.89/18,605.84 = 4,805.01/x
  3. Step 3: Cross multiply
    12,403.89x = 18,605.84 × 4,805.01
  4. Step 4: Simplify right side
    12,403.89x = 89,401,223.23
  5. Step 5: Solve for x
    x = 89,401,223.23/12,403.89
  6. Step 6: Final answer
    x = 7,207.52

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Similar ratio
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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.