Home / 19,210.12-28,808.25-8,117.67

Finding the Fourth Proportional to 19,210.12, 28,808.25 and 8,117.67

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Solution

The fourth proportional to 19,210.12, 28,808.25 and 8,117.67 is: 12,173.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.12 : 28,808.25 = 8,117.67 : x
  2. Step 2: Convert to fraction form
    19,210.12/28,808.25 = 8,117.67/x
  3. Step 3: Cross multiply
    19,210.12x = 28,808.25 × 8,117.67
  4. Step 4: Simplify right side
    19,210.12x = 233,855,758.75
  5. Step 5: Solve for x
    x = 233,855,758.75/19,210.12
  6. Step 6: Final answer
    x = 12,173.57

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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.