Home / 12,090.66-16,685.07-6,785.46

Finding the Fourth Proportional to 12,090.66, 16,685.07 and 6,785.46

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Solution

The fourth proportional to 12,090.66, 16,685.07 and 6,785.46 is: 9,363.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.66 : 16,685.07 = 6,785.46 : x
  2. Step 2: Convert to fraction form
    12,090.66/16,685.07 = 6,785.46/x
  3. Step 3: Cross multiply
    12,090.66x = 16,685.07 × 6,785.46
  4. Step 4: Simplify right side
    12,090.66x = 113,215,875.08
  5. Step 5: Solve for x
    x = 113,215,875.08/12,090.66
  6. Step 6: Final answer
    x = 9,363.91

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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.