Home / 13,970.44-20,955.66-8,779.96

Finding the Fourth Proportional to 13,970.44, 20,955.66 and 8,779.96

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Solution

The fourth proportional to 13,970.44, 20,955.66 and 8,779.96 is: 13,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.44 : 20,955.66 = 8,779.96 : x
  2. Step 2: Convert to fraction form
    13,970.44/20,955.66 = 8,779.96/x
  3. Step 3: Cross multiply
    13,970.44x = 20,955.66 × 8,779.96
  4. Step 4: Simplify right side
    13,970.44x = 183,989,856.57
  5. Step 5: Solve for x
    x = 183,989,856.57/13,970.44
  6. Step 6: Final answer
    x = 13,169.94

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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.