Home / 13,388.22-20,075.31-4,621.05

Finding the Fourth Proportional to 13,388.22, 20,075.31 and 4,621.05

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Solution

The fourth proportional to 13,388.22, 20,075.31 and 4,621.05 is: 6,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.22 : 20,075.31 = 4,621.05 : x
  2. Step 2: Convert to fraction form
    13,388.22/20,075.31 = 4,621.05/x
  3. Step 3: Cross multiply
    13,388.22x = 20,075.31 × 4,621.05
  4. Step 4: Simplify right side
    13,388.22x = 92,769,011.28
  5. Step 5: Solve for x
    x = 92,769,011.28/13,388.22
  6. Step 6: Final answer
    x = 6,929.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.