Home / 12,610.86-18,895.49-7,331.06

Finding the Fourth Proportional to 12,610.86, 18,895.49 and 7,331.06

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Solution

The fourth proportional to 12,610.86, 18,895.49 and 7,331.06 is: 10,984.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.86 : 18,895.49 = 7,331.06 : x
  2. Step 2: Convert to fraction form
    12,610.86/18,895.49 = 7,331.06/x
  3. Step 3: Cross multiply
    12,610.86x = 18,895.49 × 7,331.06
  4. Step 4: Simplify right side
    12,610.86x = 138,523,839.79
  5. Step 5: Solve for x
    x = 138,523,839.79/12,610.86
  6. Step 6: Final answer
    x = 10,984.49

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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.