Home / 14,420.27-19,903.60-8,136.29

Finding the Fourth Proportional to 14,420.27, 19,903.60 and 8,136.29

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Solution

The fourth proportional to 14,420.27, 19,903.60 and 8,136.29 is: 11,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.27 : 19,903.60 = 8,136.29 : x
  2. Step 2: Convert to fraction form
    14,420.27/19,903.60 = 8,136.29/x
  3. Step 3: Cross multiply
    14,420.27x = 19,903.60 × 8,136.29
  4. Step 4: Simplify right side
    14,420.27x = 161,941,521.57
  5. Step 5: Solve for x
    x = 161,941,521.57/14,420.27
  6. Step 6: Final answer
    x = 11,230.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.