Home / 9,969.15-13,763.33-8,862.09

Finding the Fourth Proportional to 9,969.15, 13,763.33 and 8,862.09

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Solution

The fourth proportional to 9,969.15, 13,763.33 and 8,862.09 is: 12,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.15 : 13,763.33 = 8,862.09 : x
  2. Step 2: Convert to fraction form
    9,969.15/13,763.33 = 8,862.09/x
  3. Step 3: Cross multiply
    9,969.15x = 13,763.33 × 8,862.09
  4. Step 4: Simplify right side
    9,969.15x = 121,971,869.16
  5. Step 5: Solve for x
    x = 121,971,869.16/9,969.15
  6. Step 6: Final answer
    x = 12,234.93

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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.