Home / 12,677.72-19,018.40-3,913.38

Finding the Fourth Proportional to 12,677.72, 19,018.40 and 3,913.38

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Solution

The fourth proportional to 12,677.72, 19,018.40 and 3,913.38 is: 5,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.72 : 19,018.40 = 3,913.38 : x
  2. Step 2: Convert to fraction form
    12,677.72/19,018.40 = 3,913.38/x
  3. Step 3: Cross multiply
    12,677.72x = 19,018.40 × 3,913.38
  4. Step 4: Simplify right side
    12,677.72x = 74,426,206.63
  5. Step 5: Solve for x
    x = 74,426,206.63/12,677.72
  6. Step 6: Final answer
    x = 5,870.63

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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.