Home / 13,352.45-18,426.15-7,384.77

Finding the Fourth Proportional to 13,352.45, 18,426.15 and 7,384.77

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Solution

The fourth proportional to 13,352.45, 18,426.15 and 7,384.77 is: 10,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.45 : 18,426.15 = 7,384.77 : x
  2. Step 2: Convert to fraction form
    13,352.45/18,426.15 = 7,384.77/x
  3. Step 3: Cross multiply
    13,352.45x = 18,426.15 × 7,384.77
  4. Step 4: Simplify right side
    13,352.45x = 136,072,879.74
  5. Step 5: Solve for x
    x = 136,072,879.74/13,352.45
  6. Step 6: Final answer
    x = 10,190.86

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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.