Home / 14,141.63-21,215.87-4,280.34

Finding the Fourth Proportional to 14,141.63, 21,215.87 and 4,280.34

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Solution

The fourth proportional to 14,141.63, 21,215.87 and 4,280.34 is: 6,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.63 : 21,215.87 = 4,280.34 : x
  2. Step 2: Convert to fraction form
    14,141.63/21,215.87 = 4,280.34/x
  3. Step 3: Cross multiply
    14,141.63x = 21,215.87 × 4,280.34
  4. Step 4: Simplify right side
    14,141.63x = 90,811,115.59
  5. Step 5: Solve for x
    x = 90,811,115.59/14,141.63
  6. Step 6: Final answer
    x = 6,421.55

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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.