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Finding the Fourth Proportional to 14,159.71, 21,198.04 and 9,928.29

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Solution

The fourth proportional to 14,159.71, 21,198.04 and 9,928.29 is: 14,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.71 : 21,198.04 = 9,928.29 : x
  2. Step 2: Convert to fraction form
    14,159.71/21,198.04 = 9,928.29/x
  3. Step 3: Cross multiply
    14,159.71x = 21,198.04 × 9,928.29
  4. Step 4: Simplify right side
    14,159.71x = 210,460,343.22
  5. Step 5: Solve for x
    x = 210,460,343.22/14,159.71
  6. Step 6: Final answer
    x = 14,863.32

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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.