Home / 13,927.57-19,220.04-7,639.95

Finding the Fourth Proportional to 13,927.57, 19,220.04 and 7,639.95

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Solution

The fourth proportional to 13,927.57, 19,220.04 and 7,639.95 is: 10,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.57 : 19,220.04 = 7,639.95 : x
  2. Step 2: Convert to fraction form
    13,927.57/19,220.04 = 7,639.95/x
  3. Step 3: Cross multiply
    13,927.57x = 19,220.04 × 7,639.95
  4. Step 4: Simplify right side
    13,927.57x = 146,840,144.60
  5. Step 5: Solve for x
    x = 146,840,144.60/13,927.57
  6. Step 6: Final answer
    x = 10,543.13

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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.