Home / 14,135.95-21,203.11-5,370.13

Finding the Fourth Proportional to 14,135.95, 21,203.11 and 5,370.13

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Solution

The fourth proportional to 14,135.95, 21,203.11 and 5,370.13 is: 8,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.95 : 21,203.11 = 5,370.13 : x
  2. Step 2: Convert to fraction form
    14,135.95/21,203.11 = 5,370.13/x
  3. Step 3: Cross multiply
    14,135.95x = 21,203.11 × 5,370.13
  4. Step 4: Simplify right side
    14,135.95x = 113,863,457.10
  5. Step 5: Solve for x
    x = 113,863,457.10/14,135.95
  6. Step 6: Final answer
    x = 8,054.89

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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.