Home / 14,215.40-21,321.65-4,354.74

Finding the Fourth Proportional to 14,215.40, 21,321.65 and 4,354.74

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Solution

The fourth proportional to 14,215.40, 21,321.65 and 4,354.74 is: 6,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.40 : 21,321.65 = 4,354.74 : x
  2. Step 2: Convert to fraction form
    14,215.40/21,321.65 = 4,354.74/x
  3. Step 3: Cross multiply
    14,215.40x = 21,321.65 × 4,354.74
  4. Step 4: Simplify right side
    14,215.40x = 92,850,220.35
  5. Step 5: Solve for x
    x = 92,850,220.35/14,215.40
  6. Step 6: Final answer
    x = 6,531.67

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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.