Home / 13,772.82-19,001.97-7,802.34

Finding the Fourth Proportional to 13,772.82, 19,001.97 and 7,802.34

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Solution

The fourth proportional to 13,772.82, 19,001.97 and 7,802.34 is: 10,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.82 : 19,001.97 = 7,802.34 : x
  2. Step 2: Convert to fraction form
    13,772.82/19,001.97 = 7,802.34/x
  3. Step 3: Cross multiply
    13,772.82x = 19,001.97 × 7,802.34
  4. Step 4: Simplify right side
    13,772.82x = 148,259,830.61
  5. Step 5: Solve for x
    x = 148,259,830.61/13,772.82
  6. Step 6: Final answer
    x = 10,764.67

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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.