Home / 14,970.96-20,660.13-8,257.41

Finding the Fourth Proportional to 14,970.96, 20,660.13 and 8,257.41

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Solution

The fourth proportional to 14,970.96, 20,660.13 and 8,257.41 is: 11,395.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.96 : 20,660.13 = 8,257.41 : x
  2. Step 2: Convert to fraction form
    14,970.96/20,660.13 = 8,257.41/x
  3. Step 3: Cross multiply
    14,970.96x = 20,660.13 × 8,257.41
  4. Step 4: Simplify right side
    14,970.96x = 170,599,164.06
  5. Step 5: Solve for x
    x = 170,599,164.06/14,970.96
  6. Step 6: Final answer
    x = 11,395.34

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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.