Home / 11,089.91-15,303.88-6,309.75

Finding the Fourth Proportional to 11,089.91, 15,303.88 and 6,309.75

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Solution

The fourth proportional to 11,089.91, 15,303.88 and 6,309.75 is: 8,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.91 : 15,303.88 = 6,309.75 : x
  2. Step 2: Convert to fraction form
    11,089.91/15,303.88 = 6,309.75/x
  3. Step 3: Cross multiply
    11,089.91x = 15,303.88 × 6,309.75
  4. Step 4: Simplify right side
    11,089.91x = 96,563,694.24
  5. Step 5: Solve for x
    x = 96,563,694.24/11,089.91
  6. Step 6: Final answer
    x = 8,707.34

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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.