Home / 12,913.63-19,367.89-3,551.23

Finding the Fourth Proportional to 12,913.63, 19,367.89 and 3,551.23

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Solution

The fourth proportional to 12,913.63, 19,367.89 and 3,551.23 is: 5,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.63 : 19,367.89 = 3,551.23 : x
  2. Step 2: Convert to fraction form
    12,913.63/19,367.89 = 3,551.23/x
  3. Step 3: Cross multiply
    12,913.63x = 19,367.89 × 3,551.23
  4. Step 4: Simplify right side
    12,913.63x = 68,779,880.42
  5. Step 5: Solve for x
    x = 68,779,880.42/12,913.63
  6. Step 6: Final answer
    x = 5,326.15

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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.