Home / 11,389.86-15,717.66-6,354.06

Finding the Fourth Proportional to 11,389.86, 15,717.66 and 6,354.06

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Solution

The fourth proportional to 11,389.86, 15,717.66 and 6,354.06 is: 8,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.86 : 15,717.66 = 6,354.06 : x
  2. Step 2: Convert to fraction form
    11,389.86/15,717.66 = 6,354.06/x
  3. Step 3: Cross multiply
    11,389.86x = 15,717.66 × 6,354.06
  4. Step 4: Simplify right side
    11,389.86x = 99,870,954.70
  5. Step 5: Solve for x
    x = 99,870,954.70/11,389.86
  6. Step 6: Final answer
    x = 8,768.41

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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.