Home / 18,410.18-27,621.58-7,875.86

Finding the Fourth Proportional to 18,410.18, 27,621.58 and 7,875.86

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Solution

The fourth proportional to 18,410.18, 27,621.58 and 7,875.86 is: 11,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.18 : 27,621.58 = 7,875.86 : x
  2. Step 2: Convert to fraction form
    18,410.18/27,621.58 = 7,875.86/x
  3. Step 3: Cross multiply
    18,410.18x = 27,621.58 × 7,875.86
  4. Step 4: Simplify right side
    18,410.18x = 217,543,697.06
  5. Step 5: Solve for x
    x = 217,543,697.06/18,410.18
  6. Step 6: Final answer
    x = 11,816.49

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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.