Home / 11,393.28-15,722.37-6,680.70

Finding the Fourth Proportional to 11,393.28, 15,722.37 and 6,680.70

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Solution

The fourth proportional to 11,393.28, 15,722.37 and 6,680.70 is: 9,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.28 : 15,722.37 = 6,680.70 : x
  2. Step 2: Convert to fraction form
    11,393.28/15,722.37 = 6,680.70/x
  3. Step 3: Cross multiply
    11,393.28x = 15,722.37 × 6,680.70
  4. Step 4: Simplify right side
    11,393.28x = 105,036,437.26
  5. Step 5: Solve for x
    x = 105,036,437.26/11,393.28
  6. Step 6: Final answer
    x = 9,219.16

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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.