Home / 13,200.50-19,776.03-6,618.98

Finding the Fourth Proportional to 13,200.50, 19,776.03 and 6,618.98

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Solution

The fourth proportional to 13,200.50, 19,776.03 and 6,618.98 is: 9,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.50 : 19,776.03 = 6,618.98 : x
  2. Step 2: Convert to fraction form
    13,200.50/19,776.03 = 6,618.98/x
  3. Step 3: Cross multiply
    13,200.50x = 19,776.03 × 6,618.98
  4. Step 4: Simplify right side
    13,200.50x = 130,897,147.05
  5. Step 5: Solve for x
    x = 130,897,147.05/13,200.50
  6. Step 6: Final answer
    x = 9,916.07

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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.