Home / 11,862.40-16,371.75-6,826.53

Finding the Fourth Proportional to 11,862.40, 16,371.75 and 6,826.53

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Solution

The fourth proportional to 11,862.40, 16,371.75 and 6,826.53 is: 9,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.40 : 16,371.75 = 6,826.53 : x
  2. Step 2: Convert to fraction form
    11,862.40/16,371.75 = 6,826.53/x
  3. Step 3: Cross multiply
    11,862.40x = 16,371.75 × 6,826.53
  4. Step 4: Simplify right side
    11,862.40x = 111,762,242.53
  5. Step 5: Solve for x
    x = 111,762,242.53/11,862.40
  6. Step 6: Final answer
    x = 9,421.55

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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.