Home / 13,176.37-18,152.59-9,190.37

Finding the Fourth Proportional to 13,176.37, 18,152.59 and 9,190.37

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Solution

The fourth proportional to 13,176.37, 18,152.59 and 9,190.37 is: 12,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.37 : 18,152.59 = 9,190.37 : x
  2. Step 2: Convert to fraction form
    13,176.37/18,152.59 = 9,190.37/x
  3. Step 3: Cross multiply
    13,176.37x = 18,152.59 × 9,190.37
  4. Step 4: Simplify right side
    13,176.37x = 166,828,950.77
  5. Step 5: Solve for x
    x = 166,828,950.77/13,176.37
  6. Step 6: Final answer
    x = 12,661.23

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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.