Home / 11,157.93-15,392.64-6,680.84

Finding the Fourth Proportional to 11,157.93, 15,392.64 and 6,680.84

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Solution

The fourth proportional to 11,157.93, 15,392.64 and 6,680.84 is: 9,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.93 : 15,392.64 = 6,680.84 : x
  2. Step 2: Convert to fraction form
    11,157.93/15,392.64 = 6,680.84/x
  3. Step 3: Cross multiply
    11,157.93x = 15,392.64 × 6,680.84
  4. Step 4: Simplify right side
    11,157.93x = 102,835,688.05
  5. Step 5: Solve for x
    x = 102,835,688.05/11,157.93
  6. Step 6: Final answer
    x = 9,216.38

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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.