Home / 11,158.08-16,739.91-7,877.58

Finding the Fourth Proportional to 11,158.08, 16,739.91 and 7,877.58

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Solution

The fourth proportional to 11,158.08, 16,739.91 and 7,877.58 is: 11,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.08 : 16,739.91 = 7,877.58 : x
  2. Step 2: Convert to fraction form
    11,158.08/16,739.91 = 7,877.58/x
  3. Step 3: Cross multiply
    11,158.08x = 16,739.91 × 7,877.58
  4. Step 4: Simplify right side
    11,158.08x = 131,869,980.22
  5. Step 5: Solve for x
    x = 131,869,980.22/11,158.08
  6. Step 6: Final answer
    x = 11,818.34

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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.