Home / 14,143.83-21,218.48-5,378.06

Finding the Fourth Proportional to 14,143.83, 21,218.48 and 5,378.06

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Solution

The fourth proportional to 14,143.83, 21,218.48 and 5,378.06 is: 8,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.83 : 21,218.48 = 5,378.06 : x
  2. Step 2: Convert to fraction form
    14,143.83/21,218.48 = 5,378.06/x
  3. Step 3: Cross multiply
    14,143.83x = 21,218.48 × 5,378.06
  4. Step 4: Simplify right side
    14,143.83x = 114,114,284.70
  5. Step 5: Solve for x
    x = 114,114,284.70/14,143.83
  6. Step 6: Final answer
    x = 8,068.13

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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.