Home / 12,638.04-18,957.18-4,845

Finding the Fourth Proportional to 12,638.04, 18,957.18 and 4,845

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Solution

The fourth proportional to 12,638.04, 18,957.18 and 4,845 is: 7,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.04 : 18,957.18 = 4,845 : x
  2. Step 2: Convert to fraction form
    12,638.04/18,957.18 = 4,845/x
  3. Step 3: Cross multiply
    12,638.04x = 18,957.18 × 4,845
  4. Step 4: Simplify right side
    12,638.04x = 91,847,537.10
  5. Step 5: Solve for x
    x = 91,847,537.10/12,638.04
  6. Step 6: Final answer
    x = 7,267.55

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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.