Home / 13,385.41-18,470.84-7,416.95

Finding the Fourth Proportional to 13,385.41, 18,470.84 and 7,416.95

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Solution

The fourth proportional to 13,385.41, 18,470.84 and 7,416.95 is: 10,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.41 : 18,470.84 = 7,416.95 : x
  2. Step 2: Convert to fraction form
    13,385.41/18,470.84 = 7,416.95/x
  3. Step 3: Cross multiply
    13,385.41x = 18,470.84 × 7,416.95
  4. Step 4: Simplify right side
    13,385.41x = 136,997,204.38
  5. Step 5: Solve for x
    x = 136,997,204.38/13,385.41
  6. Step 6: Final answer
    x = 10,234.82

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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.