Home / 12,699.27-19,050.16-4,378.19

Finding the Fourth Proportional to 12,699.27, 19,050.16 and 4,378.19

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Solution

The fourth proportional to 12,699.27, 19,050.16 and 4,378.19 is: 6,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.27 : 19,050.16 = 4,378.19 : x
  2. Step 2: Convert to fraction form
    12,699.27/19,050.16 = 4,378.19/x
  3. Step 3: Cross multiply
    12,699.27x = 19,050.16 × 4,378.19
  4. Step 4: Simplify right side
    12,699.27x = 83,405,209.06
  5. Step 5: Solve for x
    x = 83,405,209.06/12,699.27
  6. Step 6: Final answer
    x = 6,567.72

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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.