Home / 15,075.90-22,610.97-5,215.23

Finding the Fourth Proportional to 15,075.90, 22,610.97 and 5,215.23

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Solution

The fourth proportional to 15,075.90, 22,610.97 and 5,215.23 is: 7,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.90 : 22,610.97 = 5,215.23 : x
  2. Step 2: Convert to fraction form
    15,075.90/22,610.97 = 5,215.23/x
  3. Step 3: Cross multiply
    15,075.90x = 22,610.97 × 5,215.23
  4. Step 4: Simplify right side
    15,075.90x = 117,921,409.07
  5. Step 5: Solve for x
    x = 117,921,409.07/15,075.90
  6. Step 6: Final answer
    x = 7,821.85

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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.