Home / 11,366.28-15,688.44-6,890.22

Finding the Fourth Proportional to 11,366.28, 15,688.44 and 6,890.22

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Solution

The fourth proportional to 11,366.28, 15,688.44 and 6,890.22 is: 9,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.28 : 15,688.44 = 6,890.22 : x
  2. Step 2: Convert to fraction form
    11,366.28/15,688.44 = 6,890.22/x
  3. Step 3: Cross multiply
    11,366.28x = 15,688.44 × 6,890.22
  4. Step 4: Simplify right side
    11,366.28x = 108,096,803.06
  5. Step 5: Solve for x
    x = 108,096,803.06/11,366.28
  6. Step 6: Final answer
    x = 9,510.31

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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.