Home / 19,110.11-28,627.88-12,516.30

Finding the Fourth Proportional to 19,110.11, 28,627.88 and 12,516.30

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Solution

The fourth proportional to 19,110.11, 28,627.88 and 12,516.30 is: 18,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.11 : 28,627.88 = 12,516.30 : x
  2. Step 2: Convert to fraction form
    19,110.11/28,627.88 = 12,516.30/x
  3. Step 3: Cross multiply
    19,110.11x = 28,627.88 × 12,516.30
  4. Step 4: Simplify right side
    19,110.11x = 358,315,071.86
  5. Step 5: Solve for x
    x = 358,315,071.86/19,110.11
  6. Step 6: Final answer
    x = 18,750.03

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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.