Home / 12,009.36-16,569.69-7,163.40

Finding the Fourth Proportional to 12,009.36, 16,569.69 and 7,163.40

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Solution

The fourth proportional to 12,009.36, 16,569.69 and 7,163.40 is: 9,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.36 : 16,569.69 = 7,163.40 : x
  2. Step 2: Convert to fraction form
    12,009.36/16,569.69 = 7,163.40/x
  3. Step 3: Cross multiply
    12,009.36x = 16,569.69 × 7,163.40
  4. Step 4: Simplify right side
    12,009.36x = 118,695,317.35
  5. Step 5: Solve for x
    x = 118,695,317.35/12,009.36
  6. Step 6: Final answer
    x = 9,883.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.