Home / 12,954.50-19,434.99-5,555.30

Finding the Fourth Proportional to 12,954.50, 19,434.99 and 5,555.30

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Solution

The fourth proportional to 12,954.50, 19,434.99 and 5,555.30 is: 8,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.50 : 19,434.99 = 5,555.30 : x
  2. Step 2: Convert to fraction form
    12,954.50/19,434.99 = 5,555.30/x
  3. Step 3: Cross multiply
    12,954.50x = 19,434.99 × 5,555.30
  4. Step 4: Simplify right side
    12,954.50x = 107,967,199.95
  5. Step 5: Solve for x
    x = 107,967,199.95/12,954.50
  6. Step 6: Final answer
    x = 8,334.34

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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.