Home / 15,075.24-20,802.80-8,361.15

Finding the Fourth Proportional to 15,075.24, 20,802.80 and 8,361.15

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Solution

The fourth proportional to 15,075.24, 20,802.80 and 8,361.15 is: 11,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.24 : 20,802.80 = 8,361.15 : x
  2. Step 2: Convert to fraction form
    15,075.24/20,802.80 = 8,361.15/x
  3. Step 3: Cross multiply
    15,075.24x = 20,802.80 × 8,361.15
  4. Step 4: Simplify right side
    15,075.24x = 173,935,289.41
  5. Step 5: Solve for x
    x = 173,935,289.41/15,075.24
  6. Step 6: Final answer
    x = 11,537.81

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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.