Home / 13,970.70-20,938.23-6,558.80

Finding the Fourth Proportional to 13,970.70, 20,938.23 and 6,558.80

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Solution

The fourth proportional to 13,970.70, 20,938.23 and 6,558.80 is: 9,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.70 : 20,938.23 = 6,558.80 : x
  2. Step 2: Convert to fraction form
    13,970.70/20,938.23 = 6,558.80/x
  3. Step 3: Cross multiply
    13,970.70x = 20,938.23 × 6,558.80
  4. Step 4: Simplify right side
    13,970.70x = 137,329,558.23
  5. Step 5: Solve for x
    x = 137,329,558.23/13,970.70
  6. Step 6: Final answer
    x = 9,829.83

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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.