Home / 13,250.34-19,878.27-3,890.67

Finding the Fourth Proportional to 13,250.34, 19,878.27 and 3,890.67

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Solution

The fourth proportional to 13,250.34, 19,878.27 and 3,890.67 is: 5,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.34 : 19,878.27 = 3,890.67 : x
  2. Step 2: Convert to fraction form
    13,250.34/19,878.27 = 3,890.67/x
  3. Step 3: Cross multiply
    13,250.34x = 19,878.27 × 3,890.67
  4. Step 4: Simplify right side
    13,250.34x = 77,339,788.74
  5. Step 5: Solve for x
    x = 77,339,788.74/13,250.34
  6. Step 6: Final answer
    x = 5,836.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.