Home / 19,485.84-26,892-11,102.16

Finding the Fourth Proportional to 19,485.84, 26,892 and 11,102.16

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Solution

The fourth proportional to 19,485.84, 26,892 and 11,102.16 is: 15,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.84 : 26,892 = 11,102.16 : x
  2. Step 2: Convert to fraction form
    19,485.84/26,892 = 11,102.16/x
  3. Step 3: Cross multiply
    19,485.84x = 26,892 × 11,102.16
  4. Step 4: Simplify right side
    19,485.84x = 298,559,286.72
  5. Step 5: Solve for x
    x = 298,559,286.72/19,485.84
  6. Step 6: Final answer
    x = 15,321.86

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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.