Home / 12,235.09-16,881.52-7,199.53

Finding the Fourth Proportional to 12,235.09, 16,881.52 and 7,199.53

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Solution

The fourth proportional to 12,235.09, 16,881.52 and 7,199.53 is: 9,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.09 : 16,881.52 = 7,199.53 : x
  2. Step 2: Convert to fraction form
    12,235.09/16,881.52 = 7,199.53/x
  3. Step 3: Cross multiply
    12,235.09x = 16,881.52 × 7,199.53
  4. Step 4: Simplify right side
    12,235.09x = 121,539,009.69
  5. Step 5: Solve for x
    x = 121,539,009.69/12,235.09
  6. Step 6: Final answer
    x = 9,933.64

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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.