Home / 13,090.32-19,621.81-5,692.79

Finding the Fourth Proportional to 13,090.32, 19,621.81 and 5,692.79

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Solution

The fourth proportional to 13,090.32, 19,621.81 and 5,692.79 is: 8,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.32 : 19,621.81 = 5,692.79 : x
  2. Step 2: Convert to fraction form
    13,090.32/19,621.81 = 5,692.79/x
  3. Step 3: Cross multiply
    13,090.32x = 19,621.81 × 5,692.79
  4. Step 4: Simplify right side
    13,090.32x = 111,702,899.92
  5. Step 5: Solve for x
    x = 111,702,899.92/13,090.32
  6. Step 6: Final answer
    x = 8,533.24

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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.