Home / 13,738.55-18,959.94-8,700.93

Finding the Fourth Proportional to 13,738.55, 18,959.94 and 8,700.93

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Solution

The fourth proportional to 13,738.55, 18,959.94 and 8,700.93 is: 12,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.55 : 18,959.94 = 8,700.93 : x
  2. Step 2: Convert to fraction form
    13,738.55/18,959.94 = 8,700.93/x
  3. Step 3: Cross multiply
    13,738.55x = 18,959.94 × 8,700.93
  4. Step 4: Simplify right side
    13,738.55x = 164,969,110.74
  5. Step 5: Solve for x
    x = 164,969,110.74/13,738.55
  6. Step 6: Final answer
    x = 12,007.75

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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.