Home / 14,188.16-21,283.68-5,430.44

Finding the Fourth Proportional to 14,188.16, 21,283.68 and 5,430.44

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Solution

The fourth proportional to 14,188.16, 21,283.68 and 5,430.44 is: 8,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.16 : 21,283.68 = 5,430.44 : x
  2. Step 2: Convert to fraction form
    14,188.16/21,283.68 = 5,430.44/x
  3. Step 3: Cross multiply
    14,188.16x = 21,283.68 × 5,430.44
  4. Step 4: Simplify right side
    14,188.16x = 115,579,747.22
  5. Step 5: Solve for x
    x = 115,579,747.22/14,188.16
  6. Step 6: Final answer
    x = 8,146.21

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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.