Home / 13,731.69-18,951.53-7,763.36

Finding the Fourth Proportional to 13,731.69, 18,951.53 and 7,763.36

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Solution

The fourth proportional to 13,731.69, 18,951.53 and 7,763.36 is: 10,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.69 : 18,951.53 = 7,763.36 : x
  2. Step 2: Convert to fraction form
    13,731.69/18,951.53 = 7,763.36/x
  3. Step 3: Cross multiply
    13,731.69x = 18,951.53 × 7,763.36
  4. Step 4: Simplify right side
    13,731.69x = 147,127,416.37
  5. Step 5: Solve for x
    x = 147,127,416.37/13,731.69
  6. Step 6: Final answer
    x = 10,714.44

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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.