Home / 15,075.56-20,802.02-8,450.28

Finding the Fourth Proportional to 15,075.56, 20,802.02 and 8,450.28

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Solution

The fourth proportional to 15,075.56, 20,802.02 and 8,450.28 is: 11,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.56 : 20,802.02 = 8,450.28 : x
  2. Step 2: Convert to fraction form
    15,075.56/20,802.02 = 8,450.28/x
  3. Step 3: Cross multiply
    15,075.56x = 20,802.02 × 8,450.28
  4. Step 4: Simplify right side
    15,075.56x = 175,782,893.57
  5. Step 5: Solve for x
    x = 175,782,893.57/15,075.56
  6. Step 6: Final answer
    x = 11,660.12

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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.