Home / 11,862.45-16,370.10-6,827.90

Finding the Fourth Proportional to 11,862.45, 16,370.10 and 6,827.90

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Solution

The fourth proportional to 11,862.45, 16,370.10 and 6,827.90 is: 9,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.45 : 16,370.10 = 6,827.90 : x
  2. Step 2: Convert to fraction form
    11,862.45/16,370.10 = 6,827.90/x
  3. Step 3: Cross multiply
    11,862.45x = 16,370.10 × 6,827.90
  4. Step 4: Simplify right side
    11,862.45x = 111,773,323.94
  5. Step 5: Solve for x
    x = 111,773,323.94/11,862.45
  6. Step 6: Final answer
    x = 9,422.45

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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.