Home / 12,903.96-19,357.08-4,137.12

Finding the Fourth Proportional to 12,903.96, 19,357.08 and 4,137.12

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Solution

The fourth proportional to 12,903.96, 19,357.08 and 4,137.12 is: 6,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.96 : 19,357.08 = 4,137.12 : x
  2. Step 2: Convert to fraction form
    12,903.96/19,357.08 = 4,137.12/x
  3. Step 3: Cross multiply
    12,903.96x = 19,357.08 × 4,137.12
  4. Step 4: Simplify right side
    12,903.96x = 80,082,562.81
  5. Step 5: Solve for x
    x = 80,082,562.81/12,903.96
  6. Step 6: Final answer
    x = 6,206.05

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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.