Home / 14,970.86-20,659.68-8,256.76

Finding the Fourth Proportional to 14,970.86, 20,659.68 and 8,256.76

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Solution

The fourth proportional to 14,970.86, 20,659.68 and 8,256.76 is: 11,394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.86 : 20,659.68 = 8,256.76 : x
  2. Step 2: Convert to fraction form
    14,970.86/20,659.68 = 8,256.76/x
  3. Step 3: Cross multiply
    14,970.86x = 20,659.68 × 8,256.76
  4. Step 4: Simplify right side
    14,970.86x = 170,582,019.44
  5. Step 5: Solve for x
    x = 170,582,019.44/14,970.86
  6. Step 6: Final answer
    x = 11,394.27

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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.