Home / 13,970.37-19,279.31-7,682.88

Finding the Fourth Proportional to 13,970.37, 19,279.31 and 7,682.88

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Solution

The fourth proportional to 13,970.37, 19,279.31 and 7,682.88 is: 10,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.37 : 19,279.31 = 7,682.88 : x
  2. Step 2: Convert to fraction form
    13,970.37/19,279.31 = 7,682.88/x
  3. Step 3: Cross multiply
    13,970.37x = 19,279.31 × 7,682.88
  4. Step 4: Simplify right side
    13,970.37x = 148,120,586.80
  5. Step 5: Solve for x
    x = 148,120,586.80/13,970.37
  6. Step 6: Final answer
    x = 10,602.48

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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.