Home / 12,182.24-16,808.64-7,146.20

Finding the Fourth Proportional to 12,182.24, 16,808.64 and 7,146.20

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Solution

The fourth proportional to 12,182.24, 16,808.64 and 7,146.20 is: 9,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.24 : 16,808.64 = 7,146.20 : x
  2. Step 2: Convert to fraction form
    12,182.24/16,808.64 = 7,146.20/x
  3. Step 3: Cross multiply
    12,182.24x = 16,808.64 × 7,146.20
  4. Step 4: Simplify right side
    12,182.24x = 120,117,903.17
  5. Step 5: Solve for x
    x = 120,117,903.17/12,182.24
  6. Step 6: Final answer
    x = 9,860.08

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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.