Home / 13,155.76-19,733.82-4,390.67

Finding the Fourth Proportional to 13,155.76, 19,733.82 and 4,390.67

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Solution

The fourth proportional to 13,155.76, 19,733.82 and 4,390.67 is: 6,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.76 : 19,733.82 = 4,390.67 : x
  2. Step 2: Convert to fraction form
    13,155.76/19,733.82 = 4,390.67/x
  3. Step 3: Cross multiply
    13,155.76x = 19,733.82 × 4,390.67
  4. Step 4: Simplify right side
    13,155.76x = 86,644,724.33
  5. Step 5: Solve for x
    x = 86,644,724.33/13,155.76
  6. Step 6: Final answer
    x = 6,586.07

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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.