Home / 11,156.32-15,397.01-6,680.07

Finding the Fourth Proportional to 11,156.32, 15,397.01 and 6,680.07

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Solution

The fourth proportional to 11,156.32, 15,397.01 and 6,680.07 is: 9,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.32 : 15,397.01 = 6,680.07 : x
  2. Step 2: Convert to fraction form
    11,156.32/15,397.01 = 6,680.07/x
  3. Step 3: Cross multiply
    11,156.32x = 15,397.01 × 6,680.07
  4. Step 4: Simplify right side
    11,156.32x = 102,853,104.59
  5. Step 5: Solve for x
    x = 102,853,104.59/11,156.32
  6. Step 6: Final answer
    x = 9,219.27

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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.