Home / 13,926.93-19,220.40-7,640.52

Finding the Fourth Proportional to 13,926.93, 19,220.40 and 7,640.52

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Solution

The fourth proportional to 13,926.93, 19,220.40 and 7,640.52 is: 10,544.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.93 : 19,220.40 = 7,640.52 : x
  2. Step 2: Convert to fraction form
    13,926.93/19,220.40 = 7,640.52/x
  3. Step 3: Cross multiply
    13,926.93x = 19,220.40 × 7,640.52
  4. Step 4: Simplify right side
    13,926.93x = 146,853,850.61
  5. Step 5: Solve for x
    x = 146,853,850.61/13,926.93
  6. Step 6: Final answer
    x = 10,544.60

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1.5x scale

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.