Home / 12,528.98-18,787.80-5,963.12

Finding the Fourth Proportional to 12,528.98, 18,787.80 and 5,963.12

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Solution

The fourth proportional to 12,528.98, 18,787.80 and 5,963.12 is: 8,941.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.98 : 18,787.80 = 5,963.12 : x
  2. Step 2: Convert to fraction form
    12,528.98/18,787.80 = 5,963.12/x
  3. Step 3: Cross multiply
    12,528.98x = 18,787.80 × 5,963.12
  4. Step 4: Simplify right side
    12,528.98x = 112,033,905.94
  5. Step 5: Solve for x
    x = 112,033,905.94/12,528.98
  6. Step 6: Final answer
    x = 8,941.98

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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.