Home / 12,643.08-18,965.53-4,851.89

Finding the Fourth Proportional to 12,643.08, 18,965.53 and 4,851.89

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Solution

The fourth proportional to 12,643.08, 18,965.53 and 4,851.89 is: 7,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.08 : 18,965.53 = 4,851.89 : x
  2. Step 2: Convert to fraction form
    12,643.08/18,965.53 = 4,851.89/x
  3. Step 3: Cross multiply
    12,643.08x = 18,965.53 × 4,851.89
  4. Step 4: Simplify right side
    12,643.08x = 92,018,700.64
  5. Step 5: Solve for x
    x = 92,018,700.64/12,643.08
  6. Step 6: Final answer
    x = 7,278.19

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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.