Home / 12,483.05-18,724.95-5,459.44

Finding the Fourth Proportional to 12,483.05, 18,724.95 and 5,459.44

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Solution

The fourth proportional to 12,483.05, 18,724.95 and 5,459.44 is: 8,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.05 : 18,724.95 = 5,459.44 : x
  2. Step 2: Convert to fraction form
    12,483.05/18,724.95 = 5,459.44/x
  3. Step 3: Cross multiply
    12,483.05x = 18,724.95 × 5,459.44
  4. Step 4: Simplify right side
    12,483.05x = 102,227,741.03
  5. Step 5: Solve for x
    x = 102,227,741.03/12,483.05
  6. Step 6: Final answer
    x = 8,189.32

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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.