Home / 18,319.05-27,459.39-8,464.77

Finding the Fourth Proportional to 18,319.05, 27,459.39 and 8,464.77

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Solution

The fourth proportional to 18,319.05, 27,459.39 and 8,464.77 is: 12,688.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.05 : 27,459.39 = 8,464.77 : x
  2. Step 2: Convert to fraction form
    18,319.05/27,459.39 = 8,464.77/x
  3. Step 3: Cross multiply
    18,319.05x = 27,459.39 × 8,464.77
  4. Step 4: Simplify right side
    18,319.05x = 232,437,420.69
  5. Step 5: Solve for x
    x = 232,437,420.69/18,319.05
  6. Step 6: Final answer
    x = 12,688.29

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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.