Home / 12,090.55-16,686.59-6,785.66

Finding the Fourth Proportional to 12,090.55, 16,686.59 and 6,785.66

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Solution

The fourth proportional to 12,090.55, 16,686.59 and 6,785.66 is: 9,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.55 : 16,686.59 = 6,785.66 : x
  2. Step 2: Convert to fraction form
    12,090.55/16,686.59 = 6,785.66/x
  3. Step 3: Cross multiply
    12,090.55x = 16,686.59 × 6,785.66
  4. Step 4: Simplify right side
    12,090.55x = 113,229,526.30
  5. Step 5: Solve for x
    x = 113,229,526.30/12,090.55
  6. Step 6: Final answer
    x = 9,365.13

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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.