Home / 14,971.86-20,661.27-8,257.74

Finding the Fourth Proportional to 14,971.86, 20,661.27 and 8,257.74

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Solution

The fourth proportional to 14,971.86, 20,661.27 and 8,257.74 is: 11,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.86 : 20,661.27 = 8,257.74 : x
  2. Step 2: Convert to fraction form
    14,971.86/20,661.27 = 8,257.74/x
  3. Step 3: Cross multiply
    14,971.86x = 20,661.27 × 8,257.74
  4. Step 4: Simplify right side
    14,971.86x = 170,615,395.73
  5. Step 5: Solve for x
    x = 170,615,395.73/14,971.86
  6. Step 6: Final answer
    x = 11,395.74

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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.