Home / 12,389.04-18,583.52-3,155.04

Finding the Fourth Proportional to 12,389.04, 18,583.52 and 3,155.04

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Solution

The fourth proportional to 12,389.04, 18,583.52 and 3,155.04 is: 4,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.04 : 18,583.52 = 3,155.04 : x
  2. Step 2: Convert to fraction form
    12,389.04/18,583.52 = 3,155.04/x
  3. Step 3: Cross multiply
    12,389.04x = 18,583.52 × 3,155.04
  4. Step 4: Simplify right side
    12,389.04x = 58,631,748.94
  5. Step 5: Solve for x
    x = 58,631,748.94/12,389.04
  6. Step 6: Final answer
    x = 4,732.55

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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.