Home / 12,865.81-19,300.08-4,098.67

Finding the Fourth Proportional to 12,865.81, 19,300.08 and 4,098.67

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Solution

The fourth proportional to 12,865.81, 19,300.08 and 4,098.67 is: 6,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.81 : 19,300.08 = 4,098.67 : x
  2. Step 2: Convert to fraction form
    12,865.81/19,300.08 = 4,098.67/x
  3. Step 3: Cross multiply
    12,865.81x = 19,300.08 × 4,098.67
  4. Step 4: Simplify right side
    12,865.81x = 79,104,658.89
  5. Step 5: Solve for x
    x = 79,104,658.89/12,865.81
  6. Step 6: Final answer
    x = 6,148.44

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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.