Home / 15,075.48-20,803.14-8,360.87

Finding the Fourth Proportional to 15,075.48, 20,803.14 and 8,360.87

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Solution

The fourth proportional to 15,075.48, 20,803.14 and 8,360.87 is: 11,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.48 : 20,803.14 = 8,360.87 : x
  2. Step 2: Convert to fraction form
    15,075.48/20,803.14 = 8,360.87/x
  3. Step 3: Cross multiply
    15,075.48x = 20,803.14 × 8,360.87
  4. Step 4: Simplify right side
    15,075.48x = 173,932,245.12
  5. Step 5: Solve for x
    x = 173,932,245.12/15,075.48
  6. Step 6: Final answer
    x = 11,537.43

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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.