Home / 19,217.90-28,774.74-9,964.46

Finding the Fourth Proportional to 19,217.90, 28,774.74 and 9,964.46

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Solution

The fourth proportional to 19,217.90, 28,774.74 and 9,964.46 is: 14,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.90 : 28,774.74 = 9,964.46 : x
  2. Step 2: Convert to fraction form
    19,217.90/28,774.74 = 9,964.46/x
  3. Step 3: Cross multiply
    19,217.90x = 28,774.74 × 9,964.46
  4. Step 4: Simplify right side
    19,217.90x = 286,724,745.74
  5. Step 5: Solve for x
    x = 286,724,745.74/19,217.90
  6. Step 6: Final answer
    x = 14,919.67

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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.