Home / 14,192.31-19,586-7,904.69

Finding the Fourth Proportional to 14,192.31, 19,586 and 7,904.69

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Solution

The fourth proportional to 14,192.31, 19,586 and 7,904.69 is: 10,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,192.31 : 19,586 = 7,904.69 : x
  2. Step 2: Convert to fraction form
    14,192.31/19,586 = 7,904.69/x
  3. Step 3: Cross multiply
    14,192.31x = 19,586 × 7,904.69
  4. Step 4: Simplify right side
    14,192.31x = 154,821,258.34
  5. Step 5: Solve for x
    x = 154,821,258.34/14,192.31
  6. Step 6: Final answer
    x = 10,908.81

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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.