Home / 12,045-16,621.63-6,739.82

Finding the Fourth Proportional to 12,045, 16,621.63 and 6,739.82

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Solution

The fourth proportional to 12,045, 16,621.63 and 6,739.82 is: 9,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045 : 16,621.63 = 6,739.82 : x
  2. Step 2: Convert to fraction form
    12,045/16,621.63 = 6,739.82/x
  3. Step 3: Cross multiply
    12,045x = 16,621.63 × 6,739.82
  4. Step 4: Simplify right side
    12,045x = 112,026,760.61
  5. Step 5: Solve for x
    x = 112,026,760.61/12,045
  6. Step 6: Final answer
    x = 9,300.69

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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.