Home / 14,282.39-21,421.47-5,516.21

Finding the Fourth Proportional to 14,282.39, 21,421.47 and 5,516.21

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Solution

The fourth proportional to 14,282.39, 21,421.47 and 5,516.21 is: 8,273.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.39 : 21,421.47 = 5,516.21 : x
  2. Step 2: Convert to fraction form
    14,282.39/21,421.47 = 5,516.21/x
  3. Step 3: Cross multiply
    14,282.39x = 21,421.47 × 5,516.21
  4. Step 4: Simplify right side
    14,282.39x = 118,165,327.03
  5. Step 5: Solve for x
    x = 118,165,327.03/14,282.39
  6. Step 6: Final answer
    x = 8,273.50

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Half scale
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Double scale
Find fourth proportional to 14,283.39, 21,422.97 and 5,517.21
Similar ratio
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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.