Home / 8,758.18-13,138.47-3,210.22

Finding the Fourth Proportional to 8,758.18, 13,138.47 and 3,210.22

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Solution

The fourth proportional to 8,758.18, 13,138.47 and 3,210.22 is: 4,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.18 : 13,138.47 = 3,210.22 : x
  2. Step 2: Convert to fraction form
    8,758.18/13,138.47 = 3,210.22/x
  3. Step 3: Cross multiply
    8,758.18x = 13,138.47 × 3,210.22
  4. Step 4: Simplify right side
    8,758.18x = 42,177,379.16
  5. Step 5: Solve for x
    x = 42,177,379.16/8,758.18
  6. Step 6: Final answer
    x = 4,815.77

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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.