Home / 12,683.99-19,022.31-4,890.98

Finding the Fourth Proportional to 12,683.99, 19,022.31 and 4,890.98

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Solution

The fourth proportional to 12,683.99, 19,022.31 and 4,890.98 is: 7,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.99 : 19,022.31 = 4,890.98 : x
  2. Step 2: Convert to fraction form
    12,683.99/19,022.31 = 4,890.98/x
  3. Step 3: Cross multiply
    12,683.99x = 19,022.31 × 4,890.98
  4. Step 4: Simplify right side
    12,683.99x = 93,037,737.76
  5. Step 5: Solve for x
    x = 93,037,737.76/12,683.99
  6. Step 6: Final answer
    x = 7,335.05

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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.