Home / 13,777.83-19,013.62-7,809.36

Finding the Fourth Proportional to 13,777.83, 19,013.62 and 7,809.36

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Solution

The fourth proportional to 13,777.83, 19,013.62 and 7,809.36 is: 10,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.83 : 19,013.62 = 7,809.36 : x
  2. Step 2: Convert to fraction form
    13,777.83/19,013.62 = 7,809.36/x
  3. Step 3: Cross multiply
    13,777.83x = 19,013.62 × 7,809.36
  4. Step 4: Simplify right side
    13,777.83x = 148,484,231.49
  5. Step 5: Solve for x
    x = 148,484,231.49/13,777.83
  6. Step 6: Final answer
    x = 10,777.04

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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.