Home / 13,907.28-20,858.68-6,114.64

Finding the Fourth Proportional to 13,907.28, 20,858.68 and 6,114.64

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Solution

The fourth proportional to 13,907.28, 20,858.68 and 6,114.64 is: 9,170.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.28 : 20,858.68 = 6,114.64 : x
  2. Step 2: Convert to fraction form
    13,907.28/20,858.68 = 6,114.64/x
  3. Step 3: Cross multiply
    13,907.28x = 20,858.68 × 6,114.64
  4. Step 4: Simplify right side
    13,907.28x = 127,543,319.08
  5. Step 5: Solve for x
    x = 127,543,319.08/13,907.28
  6. Step 6: Final answer
    x = 9,170.98

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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.