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Finding the Fourth Proportional to 10,632.60, 16,028.55 and 9,918.99

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Solution

The fourth proportional to 10,632.60, 16,028.55 and 9,918.99 is: 14,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,632.60 : 16,028.55 = 9,918.99 : x
  2. Step 2: Convert to fraction form
    10,632.60/16,028.55 = 9,918.99/x
  3. Step 3: Cross multiply
    10,632.60x = 16,028.55 × 9,918.99
  4. Step 4: Simplify right side
    10,632.60x = 158,987,027.16
  5. Step 5: Solve for x
    x = 158,987,027.16/10,632.60
  6. Step 6: Final answer
    x = 14,952.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.