Home / 15,075.33-20,803.83-8,360.98

Finding the Fourth Proportional to 15,075.33, 20,803.83 and 8,360.98

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Solution

The fourth proportional to 15,075.33, 20,803.83 and 8,360.98 is: 11,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.33 : 20,803.83 = 8,360.98 : x
  2. Step 2: Convert to fraction form
    15,075.33/20,803.83 = 8,360.98/x
  3. Step 3: Cross multiply
    15,075.33x = 20,803.83 × 8,360.98
  4. Step 4: Simplify right side
    15,075.33x = 173,940,323.19
  5. Step 5: Solve for x
    x = 173,940,323.19/15,075.33
  6. Step 6: Final answer
    x = 11,538.08

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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.