Home / 12,130.23-16,739.76-6,825.12

Finding the Fourth Proportional to 12,130.23, 16,739.76 and 6,825.12

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Solution

The fourth proportional to 12,130.23, 16,739.76 and 6,825.12 is: 9,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.23 : 16,739.76 = 6,825.12 : x
  2. Step 2: Convert to fraction form
    12,130.23/16,739.76 = 6,825.12/x
  3. Step 3: Cross multiply
    12,130.23x = 16,739.76 × 6,825.12
  4. Step 4: Simplify right side
    12,130.23x = 114,250,870.77
  5. Step 5: Solve for x
    x = 114,250,870.77/12,130.23
  6. Step 6: Final answer
    x = 9,418.69

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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.