Home / 13,054.75-18,030.41-8,855.71

Finding the Fourth Proportional to 13,054.75, 18,030.41 and 8,855.71

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Solution

The fourth proportional to 13,054.75, 18,030.41 and 8,855.71 is: 12,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.75 : 18,030.41 = 8,855.71 : x
  2. Step 2: Convert to fraction form
    13,054.75/18,030.41 = 8,855.71/x
  3. Step 3: Cross multiply
    13,054.75x = 18,030.41 × 8,855.71
  4. Step 4: Simplify right side
    13,054.75x = 159,672,082.14
  5. Step 5: Solve for x
    x = 159,672,082.14/13,054.75
  6. Step 6: Final answer
    x = 12,230.96

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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.