Home / 13,438.35-20,152.46-4,075.63

Finding the Fourth Proportional to 13,438.35, 20,152.46 and 4,075.63

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Solution

The fourth proportional to 13,438.35, 20,152.46 and 4,075.63 is: 6,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.35 : 20,152.46 = 4,075.63 : x
  2. Step 2: Convert to fraction form
    13,438.35/20,152.46 = 4,075.63/x
  3. Step 3: Cross multiply
    13,438.35x = 20,152.46 × 4,075.63
  4. Step 4: Simplify right side
    13,438.35x = 82,133,930.36
  5. Step 5: Solve for x
    x = 82,133,930.36/13,438.35
  6. Step 6: Final answer
    x = 6,111.91

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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.