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Finding the Fourth Proportional to 14,308.87, 21,477.89 and 9,866.83

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Solution

The fourth proportional to 14,308.87, 21,477.89 and 9,866.83 is: 14,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.87 : 21,477.89 = 9,866.83 : x
  2. Step 2: Convert to fraction form
    14,308.87/21,477.89 = 9,866.83/x
  3. Step 3: Cross multiply
    14,308.87x = 21,477.89 × 9,866.83
  4. Step 4: Simplify right side
    14,308.87x = 211,918,689.39
  5. Step 5: Solve for x
    x = 211,918,689.39/14,308.87
  6. Step 6: Final answer
    x = 14,810.30

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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.