Home / 13,942.46-19,240.28-7,973.78

Finding the Fourth Proportional to 13,942.46, 19,240.28 and 7,973.78

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Solution

The fourth proportional to 13,942.46, 19,240.28 and 7,973.78 is: 11,003.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.46 : 19,240.28 = 7,973.78 : x
  2. Step 2: Convert to fraction form
    13,942.46/19,240.28 = 7,973.78/x
  3. Step 3: Cross multiply
    13,942.46x = 19,240.28 × 7,973.78
  4. Step 4: Simplify right side
    13,942.46x = 153,417,623.79
  5. Step 5: Solve for x
    x = 153,417,623.79/13,942.46
  6. Step 6: Final answer
    x = 11,003.62

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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.