Home / 12,303.67-18,455.37-3,983.50

Finding the Fourth Proportional to 12,303.67, 18,455.37 and 3,983.50

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Solution

The fourth proportional to 12,303.67, 18,455.37 and 3,983.50 is: 5,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.67 : 18,455.37 = 3,983.50 : x
  2. Step 2: Convert to fraction form
    12,303.67/18,455.37 = 3,983.50/x
  3. Step 3: Cross multiply
    12,303.67x = 18,455.37 × 3,983.50
  4. Step 4: Simplify right side
    12,303.67x = 73,516,966.40
  5. Step 5: Solve for x
    x = 73,516,966.40/12,303.67
  6. Step 6: Final answer
    x = 5,975.21

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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.