Home / 12,590.55-18,867.45-11,206.67

Finding the Fourth Proportional to 12,590.55, 18,867.45 and 11,206.67

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Solution

The fourth proportional to 12,590.55, 18,867.45 and 11,206.67 is: 16,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.55 : 18,867.45 = 11,206.67 : x
  2. Step 2: Convert to fraction form
    12,590.55/18,867.45 = 11,206.67/x
  3. Step 3: Cross multiply
    12,590.55x = 18,867.45 × 11,206.67
  4. Step 4: Simplify right side
    12,590.55x = 211,441,191.55
  5. Step 5: Solve for x
    x = 211,441,191.55/12,590.55
  6. Step 6: Final answer
    x = 16,793.64

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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.