Home / 14,931.86-20,605.52-8,217.48

Finding the Fourth Proportional to 14,931.86, 20,605.52 and 8,217.48

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Solution

The fourth proportional to 14,931.86, 20,605.52 and 8,217.48 is: 11,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.86 : 20,605.52 = 8,217.48 : x
  2. Step 2: Convert to fraction form
    14,931.86/20,605.52 = 8,217.48/x
  3. Step 3: Cross multiply
    14,931.86x = 20,605.52 × 8,217.48
  4. Step 4: Simplify right side
    14,931.86x = 169,325,448.49
  5. Step 5: Solve for x
    x = 169,325,448.49/14,931.86
  6. Step 6: Final answer
    x = 11,339.88

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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.