Home / 11,455.34-15,808.09-6,739.92

Finding the Fourth Proportional to 11,455.34, 15,808.09 and 6,739.92

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Solution

The fourth proportional to 11,455.34, 15,808.09 and 6,739.92 is: 9,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.34 : 15,808.09 = 6,739.92 : x
  2. Step 2: Convert to fraction form
    11,455.34/15,808.09 = 6,739.92/x
  3. Step 3: Cross multiply
    11,455.34x = 15,808.09 × 6,739.92
  4. Step 4: Simplify right side
    11,455.34x = 106,545,261.95
  5. Step 5: Solve for x
    x = 106,545,261.95/11,455.34
  6. Step 6: Final answer
    x = 9,300.93

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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.