Home / 13,552.23-20,328.50-4,780.99

Finding the Fourth Proportional to 13,552.23, 20,328.50 and 4,780.99

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Solution

The fourth proportional to 13,552.23, 20,328.50 and 4,780.99 is: 7,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.23 : 20,328.50 = 4,780.99 : x
  2. Step 2: Convert to fraction form
    13,552.23/20,328.50 = 4,780.99/x
  3. Step 3: Cross multiply
    13,552.23x = 20,328.50 × 4,780.99
  4. Step 4: Simplify right side
    13,552.23x = 97,190,331.31
  5. Step 5: Solve for x
    x = 97,190,331.31/13,552.23
  6. Step 6: Final answer
    x = 7,171.54

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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.