Home / 11,254.87-16,879.43-5,325.91

Finding the Fourth Proportional to 11,254.87, 16,879.43 and 5,325.91

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Solution

The fourth proportional to 11,254.87, 16,879.43 and 5,325.91 is: 7,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.87 : 16,879.43 = 5,325.91 : x
  2. Step 2: Convert to fraction form
    11,254.87/16,879.43 = 5,325.91/x
  3. Step 3: Cross multiply
    11,254.87x = 16,879.43 × 5,325.91
  4. Step 4: Simplify right side
    11,254.87x = 89,898,298.40
  5. Step 5: Solve for x
    x = 89,898,298.40/11,254.87
  6. Step 6: Final answer
    x = 7,987.50

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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.