Home / 13,263.80-19,907.58-11,855.98

Finding the Fourth Proportional to 13,263.80, 19,907.58 and 11,855.98

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Solution

The fourth proportional to 13,263.80, 19,907.58 and 11,855.98 is: 17,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.80 : 19,907.58 = 11,855.98 : x
  2. Step 2: Convert to fraction form
    13,263.80/19,907.58 = 11,855.98/x
  3. Step 3: Cross multiply
    13,263.80x = 19,907.58 × 11,855.98
  4. Step 4: Simplify right side
    13,263.80x = 236,023,711.51
  5. Step 5: Solve for x
    x = 236,023,711.51/13,263.80
  6. Step 6: Final answer
    x = 17,794.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.