Home / 12,623.13-18,928.42-7,359.95

Finding the Fourth Proportional to 12,623.13, 18,928.42 and 7,359.95

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Solution

The fourth proportional to 12,623.13, 18,928.42 and 7,359.95 is: 11,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.13 : 18,928.42 = 7,359.95 : x
  2. Step 2: Convert to fraction form
    12,623.13/18,928.42 = 7,359.95/x
  3. Step 3: Cross multiply
    12,623.13x = 18,928.42 × 7,359.95
  4. Step 4: Simplify right side
    12,623.13x = 139,312,253.70
  5. Step 5: Solve for x
    x = 139,312,253.70/12,623.13
  6. Step 6: Final answer
    x = 11,036.27

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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.