Home / 13,940.63-19,235.18-8,274.58

Finding the Fourth Proportional to 13,940.63, 19,235.18 and 8,274.58

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Solution

The fourth proportional to 13,940.63, 19,235.18 and 8,274.58 is: 11,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.63 : 19,235.18 = 8,274.58 : x
  2. Step 2: Convert to fraction form
    13,940.63/19,235.18 = 8,274.58/x
  3. Step 3: Cross multiply
    13,940.63x = 19,235.18 × 8,274.58
  4. Step 4: Simplify right side
    13,940.63x = 159,163,035.72
  5. Step 5: Solve for x
    x = 159,163,035.72/13,940.63
  6. Step 6: Final answer
    x = 11,417.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.