Home / 14,970.48-20,660.46-8,257.40

Finding the Fourth Proportional to 14,970.48, 20,660.46 and 8,257.40

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Solution

The fourth proportional to 14,970.48, 20,660.46 and 8,257.40 is: 11,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.48 : 20,660.46 = 8,257.40 : x
  2. Step 2: Convert to fraction form
    14,970.48/20,660.46 = 8,257.40/x
  3. Step 3: Cross multiply
    14,970.48x = 20,660.46 × 8,257.40
  4. Step 4: Simplify right side
    14,970.48x = 170,601,682.40
  5. Step 5: Solve for x
    x = 170,601,682.40/14,970.48
  6. Step 6: Final answer
    x = 11,395.87

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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.