Home / 7,923.72-11,881.74-3,973.28

Finding the Fourth Proportional to 7,923.72, 11,881.74 and 3,973.28

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Solution

The fourth proportional to 7,923.72, 11,881.74 and 3,973.28 is: 5,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.72 : 11,881.74 = 3,973.28 : x
  2. Step 2: Convert to fraction form
    7,923.72/11,881.74 = 3,973.28/x
  3. Step 3: Cross multiply
    7,923.72x = 11,881.74 × 3,973.28
  4. Step 4: Simplify right side
    7,923.72x = 47,209,509.61
  5. Step 5: Solve for x
    x = 47,209,509.61/7,923.72
  6. Step 6: Final answer
    x = 5,958.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.