Home / 14,205.70-21,300.55-5,440.90

Finding the Fourth Proportional to 14,205.70, 21,300.55 and 5,440.90

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Solution

The fourth proportional to 14,205.70, 21,300.55 and 5,440.90 is: 8,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.70 : 21,300.55 = 5,440.90 : x
  2. Step 2: Convert to fraction form
    14,205.70/21,300.55 = 5,440.90/x
  3. Step 3: Cross multiply
    14,205.70x = 21,300.55 × 5,440.90
  4. Step 4: Simplify right side
    14,205.70x = 115,894,162.50
  5. Step 5: Solve for x
    x = 115,894,162.50/14,205.70
  6. Step 6: Final answer
    x = 8,158.29

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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.