Home / 13,090.72-19,636.64-4,325.64

Finding the Fourth Proportional to 13,090.72, 19,636.64 and 4,325.64

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Solution

The fourth proportional to 13,090.72, 19,636.64 and 4,325.64 is: 6,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.72 : 19,636.64 = 4,325.64 : x
  2. Step 2: Convert to fraction form
    13,090.72/19,636.64 = 4,325.64/x
  3. Step 3: Cross multiply
    13,090.72x = 19,636.64 × 4,325.64
  4. Step 4: Simplify right side
    13,090.72x = 84,941,035.45
  5. Step 5: Solve for x
    x = 84,941,035.45/13,090.72
  6. Step 6: Final answer
    x = 6,488.65

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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.