Home / 13,669.90-18,860.53-8,896.87

Finding the Fourth Proportional to 13,669.90, 18,860.53 and 8,896.87

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Solution

The fourth proportional to 13,669.90, 18,860.53 and 8,896.87 is: 12,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.90 : 18,860.53 = 8,896.87 : x
  2. Step 2: Convert to fraction form
    13,669.90/18,860.53 = 8,896.87/x
  3. Step 3: Cross multiply
    13,669.90x = 18,860.53 × 8,896.87
  4. Step 4: Simplify right side
    13,669.90x = 167,799,544.75
  5. Step 5: Solve for x
    x = 167,799,544.75/13,669.90
  6. Step 6: Final answer
    x = 12,275.11

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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.