Home / 12,001.39-16,561.89-6,968.56

Finding the Fourth Proportional to 12,001.39, 16,561.89 and 6,968.56

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Solution

The fourth proportional to 12,001.39, 16,561.89 and 6,968.56 is: 9,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.39 : 16,561.89 = 6,968.56 : x
  2. Step 2: Convert to fraction form
    12,001.39/16,561.89 = 6,968.56/x
  3. Step 3: Cross multiply
    12,001.39x = 16,561.89 × 6,968.56
  4. Step 4: Simplify right side
    12,001.39x = 115,412,482.77
  5. Step 5: Solve for x
    x = 115,412,482.77/12,001.39
  6. Step 6: Final answer
    x = 9,616.59

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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.