Home / 14,047.40-21,072.18-4,185.92

Finding the Fourth Proportional to 14,047.40, 21,072.18 and 4,185.92

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Solution

The fourth proportional to 14,047.40, 21,072.18 and 4,185.92 is: 6,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.40 : 21,072.18 = 4,185.92 : x
  2. Step 2: Convert to fraction form
    14,047.40/21,072.18 = 4,185.92/x
  3. Step 3: Cross multiply
    14,047.40x = 21,072.18 × 4,185.92
  4. Step 4: Simplify right side
    14,047.40x = 88,206,459.71
  5. Step 5: Solve for x
    x = 88,206,459.71/14,047.40
  6. Step 6: Final answer
    x = 6,279.20

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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.