Home / 13,730.04-18,947.49-7,442.43

Finding the Fourth Proportional to 13,730.04, 18,947.49 and 7,442.43

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Solution

The fourth proportional to 13,730.04, 18,947.49 and 7,442.43 is: 10,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.04 : 18,947.49 = 7,442.43 : x
  2. Step 2: Convert to fraction form
    13,730.04/18,947.49 = 7,442.43/x
  3. Step 3: Cross multiply
    13,730.04x = 18,947.49 × 7,442.43
  4. Step 4: Simplify right side
    13,730.04x = 141,015,368.00
  5. Step 5: Solve for x
    x = 141,015,368.00/13,730.04
  6. Step 6: Final answer
    x = 10,270.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.