Home / 15,075.78-22,615.73-5,212.41

Finding the Fourth Proportional to 15,075.78, 22,615.73 and 5,212.41

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Solution

The fourth proportional to 15,075.78, 22,615.73 and 5,212.41 is: 7,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.78 : 22,615.73 = 5,212.41 : x
  2. Step 2: Convert to fraction form
    15,075.78/22,615.73 = 5,212.41/x
  3. Step 3: Cross multiply
    15,075.78x = 22,615.73 × 5,212.41
  4. Step 4: Simplify right side
    15,075.78x = 117,882,374.61
  5. Step 5: Solve for x
    x = 117,882,374.61/15,075.78
  6. Step 6: Final answer
    x = 7,819.32

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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.