Home / 13,865.50-20,798.25-4,631.50

Finding the Fourth Proportional to 13,865.50, 20,798.25 and 4,631.50

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Solution

The fourth proportional to 13,865.50, 20,798.25 and 4,631.50 is: 6,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.50 : 20,798.25 = 4,631.50 : x
  2. Step 2: Convert to fraction form
    13,865.50/20,798.25 = 4,631.50/x
  3. Step 3: Cross multiply
    13,865.50x = 20,798.25 × 4,631.50
  4. Step 4: Simplify right side
    13,865.50x = 96,327,094.88
  5. Step 5: Solve for x
    x = 96,327,094.88/13,865.50
  6. Step 6: Final answer
    x = 6,947.25

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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.