Home / 14,384.54-19,854.36-12,889.86

Finding the Fourth Proportional to 14,384.54, 19,854.36 and 12,889.86

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Solution

The fourth proportional to 14,384.54, 19,854.36 and 12,889.86 is: 17,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,384.54 : 19,854.36 = 12,889.86 : x
  2. Step 2: Convert to fraction form
    14,384.54/19,854.36 = 12,889.86/x
  3. Step 3: Cross multiply
    14,384.54x = 19,854.36 × 12,889.86
  4. Step 4: Simplify right side
    14,384.54x = 255,919,920.79
  5. Step 5: Solve for x
    x = 255,919,920.79/14,384.54
  6. Step 6: Final answer
    x = 17,791.32

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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.