Home / 14,689.04-20,269.80-8,313.80

Finding the Fourth Proportional to 14,689.04, 20,269.80 and 8,313.80

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Solution

The fourth proportional to 14,689.04, 20,269.80 and 8,313.80 is: 11,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.04 : 20,269.80 = 8,313.80 : x
  2. Step 2: Convert to fraction form
    14,689.04/20,269.80 = 8,313.80/x
  3. Step 3: Cross multiply
    14,689.04x = 20,269.80 × 8,313.80
  4. Step 4: Simplify right side
    14,689.04x = 168,519,063.24
  5. Step 5: Solve for x
    x = 168,519,063.24/14,689.04
  6. Step 6: Final answer
    x = 11,472.44

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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.