Home / 18,621.07-27,925.67-6,138.77

Finding the Fourth Proportional to 18,621.07, 27,925.67 and 6,138.77

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Solution

The fourth proportional to 18,621.07, 27,925.67 and 6,138.77 is: 9,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.07 : 27,925.67 = 6,138.77 : x
  2. Step 2: Convert to fraction form
    18,621.07/27,925.67 = 6,138.77/x
  3. Step 3: Cross multiply
    18,621.07x = 27,925.67 × 6,138.77
  4. Step 4: Simplify right side
    18,621.07x = 171,429,140.94
  5. Step 5: Solve for x
    x = 171,429,140.94/18,621.07
  6. Step 6: Final answer
    x = 9,206.19

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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.