Home / 12,683.49-19,021.38-4,358.71

Finding the Fourth Proportional to 12,683.49, 19,021.38 and 4,358.71

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Solution

The fourth proportional to 12,683.49, 19,021.38 and 4,358.71 is: 6,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.49 : 19,021.38 = 4,358.71 : x
  2. Step 2: Convert to fraction form
    12,683.49/19,021.38 = 4,358.71/x
  3. Step 3: Cross multiply
    12,683.49x = 19,021.38 × 4,358.71
  4. Step 4: Simplify right side
    12,683.49x = 82,908,679.22
  5. Step 5: Solve for x
    x = 82,908,679.22/12,683.49
  6. Step 6: Final answer
    x = 6,536.74

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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.