Home / 12,303.45-18,459.36-3,983.81

Finding the Fourth Proportional to 12,303.45, 18,459.36 and 3,983.81

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Solution

The fourth proportional to 12,303.45, 18,459.36 and 3,983.81 is: 5,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.45 : 18,459.36 = 3,983.81 : x
  2. Step 2: Convert to fraction form
    12,303.45/18,459.36 = 3,983.81/x
  3. Step 3: Cross multiply
    12,303.45x = 18,459.36 × 3,983.81
  4. Step 4: Simplify right side
    12,303.45x = 73,538,490.66
  5. Step 5: Solve for x
    x = 73,538,490.66/12,303.45
  6. Step 6: Final answer
    x = 5,977.06

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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.