Home / 12,001.35-16,561.74-6,623.84

Finding the Fourth Proportional to 12,001.35, 16,561.74 and 6,623.84

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Solution

The fourth proportional to 12,001.35, 16,561.74 and 6,623.84 is: 9,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.35 : 16,561.74 = 6,623.84 : x
  2. Step 2: Convert to fraction form
    12,001.35/16,561.74 = 6,623.84/x
  3. Step 3: Cross multiply
    12,001.35x = 16,561.74 × 6,623.84
  4. Step 4: Simplify right side
    12,001.35x = 109,702,233.07
  5. Step 5: Solve for x
    x = 109,702,233.07/12,001.35
  6. Step 6: Final answer
    x = 9,140.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.