Home / 18,816.37-28,219.29-5,666.83

Finding the Fourth Proportional to 18,816.37, 28,219.29 and 5,666.83

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Solution

The fourth proportional to 18,816.37, 28,219.29 and 5,666.83 is: 8,498.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.37 : 28,219.29 = 5,666.83 : x
  2. Step 2: Convert to fraction form
    18,816.37/28,219.29 = 5,666.83/x
  3. Step 3: Cross multiply
    18,816.37x = 28,219.29 × 5,666.83
  4. Step 4: Simplify right side
    18,816.37x = 159,913,827.35
  5. Step 5: Solve for x
    x = 159,913,827.35/18,816.37
  6. Step 6: Final answer
    x = 8,498.66

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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.