Home / 12,681.23-19,021.82-4,884.57

Finding the Fourth Proportional to 12,681.23, 19,021.82 and 4,884.57

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Solution

The fourth proportional to 12,681.23, 19,021.82 and 4,884.57 is: 7,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.23 : 19,021.82 = 4,884.57 : x
  2. Step 2: Convert to fraction form
    12,681.23/19,021.82 = 4,884.57/x
  3. Step 3: Cross multiply
    12,681.23x = 19,021.82 × 4,884.57
  4. Step 4: Simplify right side
    12,681.23x = 92,913,386.89
  5. Step 5: Solve for x
    x = 92,913,386.89/12,681.23
  6. Step 6: Final answer
    x = 7,326.85

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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.