Home / 11,438.07-15,783.42-6,658.64

Finding the Fourth Proportional to 11,438.07, 15,783.42 and 6,658.64

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Solution

The fourth proportional to 11,438.07, 15,783.42 and 6,658.64 is: 9,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.07 : 15,783.42 = 6,658.64 : x
  2. Step 2: Convert to fraction form
    11,438.07/15,783.42 = 6,658.64/x
  3. Step 3: Cross multiply
    11,438.07x = 15,783.42 × 6,658.64
  4. Step 4: Simplify right side
    11,438.07x = 105,096,111.75
  5. Step 5: Solve for x
    x = 105,096,111.75/11,438.07
  6. Step 6: Final answer
    x = 9,188.27

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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.