Home / 15,075.10-20,803.44-8,360.74

Finding the Fourth Proportional to 15,075.10, 20,803.44 and 8,360.74

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Solution

The fourth proportional to 15,075.10, 20,803.44 and 8,360.74 is: 11,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.10 : 20,803.44 = 8,360.74 : x
  2. Step 2: Convert to fraction form
    15,075.10/20,803.44 = 8,360.74/x
  3. Step 3: Cross multiply
    15,075.10x = 20,803.44 × 8,360.74
  4. Step 4: Simplify right side
    15,075.10x = 173,932,152.95
  5. Step 5: Solve for x
    x = 173,932,152.95/15,075.10
  6. Step 6: Final answer
    x = 11,537.71

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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.