Home / 11,245.72-16,848.30-5,389.40

Finding the Fourth Proportional to 11,245.72, 16,848.30 and 5,389.40

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Solution

The fourth proportional to 11,245.72, 16,848.30 and 5,389.40 is: 8,074.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.72 : 16,848.30 = 5,389.40 : x
  2. Step 2: Convert to fraction form
    11,245.72/16,848.30 = 5,389.40/x
  3. Step 3: Cross multiply
    11,245.72x = 16,848.30 × 5,389.40
  4. Step 4: Simplify right side
    11,245.72x = 90,802,228.02
  5. Step 5: Solve for x
    x = 90,802,228.02/11,245.72
  6. Step 6: Final answer
    x = 8,074.38

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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.