Home / 13,650.93-18,838.88-7,682.98

Finding the Fourth Proportional to 13,650.93, 18,838.88 and 7,682.98

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Solution

The fourth proportional to 13,650.93, 18,838.88 and 7,682.98 is: 10,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.93 : 18,838.88 = 7,682.98 : x
  2. Step 2: Convert to fraction form
    13,650.93/18,838.88 = 7,682.98/x
  3. Step 3: Cross multiply
    13,650.93x = 18,838.88 × 7,682.98
  4. Step 4: Simplify right side
    13,650.93x = 144,738,795.42
  5. Step 5: Solve for x
    x = 144,738,795.42/13,650.93
  6. Step 6: Final answer
    x = 10,602.86

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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.