Home / 11,393.08-15,722.61-6,289.17

Finding the Fourth Proportional to 11,393.08, 15,722.61 and 6,289.17

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Solution

The fourth proportional to 11,393.08, 15,722.61 and 6,289.17 is: 8,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.08 : 15,722.61 = 6,289.17 : x
  2. Step 2: Convert to fraction form
    11,393.08/15,722.61 = 6,289.17/x
  3. Step 3: Cross multiply
    11,393.08x = 15,722.61 × 6,289.17
  4. Step 4: Simplify right side
    11,393.08x = 98,882,167.13
  5. Step 5: Solve for x
    x = 98,882,167.13/11,393.08
  6. Step 6: Final answer
    x = 8,679.14

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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.