Home / 13,927.30-19,212.51-9,146.55

Finding the Fourth Proportional to 13,927.30, 19,212.51 and 9,146.55

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Solution

The fourth proportional to 13,927.30, 19,212.51 and 9,146.55 is: 12,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.30 : 19,212.51 = 9,146.55 : x
  2. Step 2: Convert to fraction form
    13,927.30/19,212.51 = 9,146.55/x
  3. Step 3: Cross multiply
    13,927.30x = 19,212.51 × 9,146.55
  4. Step 4: Simplify right side
    13,927.30x = 175,728,289.69
  5. Step 5: Solve for x
    x = 175,728,289.69/13,927.30
  6. Step 6: Final answer
    x = 12,617.54

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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.