Home / 12,935.43-19,370.19-8,539.47

Finding the Fourth Proportional to 12,935.43, 19,370.19 and 8,539.47

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Solution

The fourth proportional to 12,935.43, 19,370.19 and 8,539.47 is: 12,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.43 : 19,370.19 = 8,539.47 : x
  2. Step 2: Convert to fraction form
    12,935.43/19,370.19 = 8,539.47/x
  3. Step 3: Cross multiply
    12,935.43x = 19,370.19 × 8,539.47
  4. Step 4: Simplify right side
    12,935.43x = 165,411,156.40
  5. Step 5: Solve for x
    x = 165,411,156.40/12,935.43
  6. Step 6: Final answer
    x = 12,787.45

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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.