Home / 13,768.83-19,001.93-7,800.53

Finding the Fourth Proportional to 13,768.83, 19,001.93 and 7,800.53

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Solution

The fourth proportional to 13,768.83, 19,001.93 and 7,800.53 is: 10,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.83 : 19,001.93 = 7,800.53 : x
  2. Step 2: Convert to fraction form
    13,768.83/19,001.93 = 7,800.53/x
  3. Step 3: Cross multiply
    13,768.83x = 19,001.93 × 7,800.53
  4. Step 4: Simplify right side
    13,768.83x = 148,224,991.01
  5. Step 5: Solve for x
    x = 148,224,991.01/13,768.83
  6. Step 6: Final answer
    x = 10,765.26

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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.