Home / 11,313.61-16,981.81-10,005.97

Finding the Fourth Proportional to 11,313.61, 16,981.81 and 10,005.97

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Solution

The fourth proportional to 11,313.61, 16,981.81 and 10,005.97 is: 15,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.61 : 16,981.81 = 10,005.97 : x
  2. Step 2: Convert to fraction form
    11,313.61/16,981.81 = 10,005.97/x
  3. Step 3: Cross multiply
    11,313.61x = 16,981.81 × 10,005.97
  4. Step 4: Simplify right side
    11,313.61x = 169,919,481.41
  5. Step 5: Solve for x
    x = 169,919,481.41/11,313.61
  6. Step 6: Final answer
    x = 15,019.03

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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.