Home / 13,988.50-20,984.37-4,629.76

Finding the Fourth Proportional to 13,988.50, 20,984.37 and 4,629.76

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Solution

The fourth proportional to 13,988.50, 20,984.37 and 4,629.76 is: 6,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.50 : 20,984.37 = 4,629.76 : x
  2. Step 2: Convert to fraction form
    13,988.50/20,984.37 = 4,629.76/x
  3. Step 3: Cross multiply
    13,988.50x = 20,984.37 × 4,629.76
  4. Step 4: Simplify right side
    13,988.50x = 97,152,596.85
  5. Step 5: Solve for x
    x = 97,152,596.85/13,988.50
  6. Step 6: Final answer
    x = 6,945.18

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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.