Home / 12,055.96-16,629.28-8,693.20

Finding the Fourth Proportional to 12,055.96, 16,629.28 and 8,693.20

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Solution

The fourth proportional to 12,055.96, 16,629.28 and 8,693.20 is: 11,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.96 : 16,629.28 = 8,693.20 : x
  2. Step 2: Convert to fraction form
    12,055.96/16,629.28 = 8,693.20/x
  3. Step 3: Cross multiply
    12,055.96x = 16,629.28 × 8,693.20
  4. Step 4: Simplify right side
    12,055.96x = 144,561,656.90
  5. Step 5: Solve for x
    x = 144,561,656.90/12,055.96
  6. Step 6: Final answer
    x = 11,990.89

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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.