Home / 12,001.17-16,561.49-6,623.89

Finding the Fourth Proportional to 12,001.17, 16,561.49 and 6,623.89

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Solution

The fourth proportional to 12,001.17, 16,561.49 and 6,623.89 is: 9,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.17 : 16,561.49 = 6,623.89 : x
  2. Step 2: Convert to fraction form
    12,001.17/16,561.49 = 6,623.89/x
  3. Step 3: Cross multiply
    12,001.17x = 16,561.49 × 6,623.89
  4. Step 4: Simplify right side
    12,001.17x = 109,701,500.42
  5. Step 5: Solve for x
    x = 109,701,500.42/12,001.17
  6. Step 6: Final answer
    x = 9,140.90

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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.