Home / 14,416.41-19,894.65-8,128.77

Finding the Fourth Proportional to 14,416.41, 19,894.65 and 8,128.77

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Solution

The fourth proportional to 14,416.41, 19,894.65 and 8,128.77 is: 11,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,416.41 : 19,894.65 = 8,128.77 : x
  2. Step 2: Convert to fraction form
    14,416.41/19,894.65 = 8,128.77/x
  3. Step 3: Cross multiply
    14,416.41x = 19,894.65 × 8,128.77
  4. Step 4: Simplify right side
    14,416.41x = 161,719,034.08
  5. Step 5: Solve for x
    x = 161,719,034.08/14,416.41
  6. Step 6: Final answer
    x = 11,217.70

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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.