Home / 14,970.43-20,660.14-8,256.07

Finding the Fourth Proportional to 14,970.43, 20,660.14 and 8,256.07

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Solution

The fourth proportional to 14,970.43, 20,660.14 and 8,256.07 is: 11,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.43 : 20,660.14 = 8,256.07 : x
  2. Step 2: Convert to fraction form
    14,970.43/20,660.14 = 8,256.07/x
  3. Step 3: Cross multiply
    14,970.43x = 20,660.14 × 8,256.07
  4. Step 4: Simplify right side
    14,970.43x = 170,571,489.76
  5. Step 5: Solve for x
    x = 170,571,489.76/14,970.43
  6. Step 6: Final answer
    x = 11,393.90

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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.