Home / 14,947.35-20,626.53-8,231.70

Finding the Fourth Proportional to 14,947.35, 20,626.53 and 8,231.70

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Solution

The fourth proportional to 14,947.35, 20,626.53 and 8,231.70 is: 11,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.35 : 20,626.53 = 8,231.70 : x
  2. Step 2: Convert to fraction form
    14,947.35/20,626.53 = 8,231.70/x
  3. Step 3: Cross multiply
    14,947.35x = 20,626.53 × 8,231.70
  4. Step 4: Simplify right side
    14,947.35x = 169,791,407.00
  5. Step 5: Solve for x
    x = 169,791,407.00/14,947.35
  6. Step 6: Final answer
    x = 11,359.30

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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.