Home / 12,643.36-18,967.48-4,851.56

Finding the Fourth Proportional to 12,643.36, 18,967.48 and 4,851.56

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Solution

The fourth proportional to 12,643.36, 18,967.48 and 4,851.56 is: 7,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.36 : 18,967.48 = 4,851.56 : x
  2. Step 2: Convert to fraction form
    12,643.36/18,967.48 = 4,851.56/x
  3. Step 3: Cross multiply
    12,643.36x = 18,967.48 × 4,851.56
  4. Step 4: Simplify right side
    12,643.36x = 92,021,902.56
  5. Step 5: Solve for x
    x = 92,021,902.56/12,643.36
  6. Step 6: Final answer
    x = 7,278.28

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1.5x scale

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.