Home / 15,075.35-22,619.18-5,221.56

Finding the Fourth Proportional to 15,075.35, 22,619.18 and 5,221.56

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Solution

The fourth proportional to 15,075.35, 22,619.18 and 5,221.56 is: 7,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.35 : 22,619.18 = 5,221.56 : x
  2. Step 2: Convert to fraction form
    15,075.35/22,619.18 = 5,221.56/x
  3. Step 3: Cross multiply
    15,075.35x = 22,619.18 × 5,221.56
  4. Step 4: Simplify right side
    15,075.35x = 118,107,405.52
  5. Step 5: Solve for x
    x = 118,107,405.52/15,075.35
  6. Step 6: Final answer
    x = 7,834.47

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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.