Home / 13,622.09-18,810.78-8,595.23

Finding the Fourth Proportional to 13,622.09, 18,810.78 and 8,595.23

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Solution

The fourth proportional to 13,622.09, 18,810.78 and 8,595.23 is: 11,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.09 : 18,810.78 = 8,595.23 : x
  2. Step 2: Convert to fraction form
    13,622.09/18,810.78 = 8,595.23/x
  3. Step 3: Cross multiply
    13,622.09x = 18,810.78 × 8,595.23
  4. Step 4: Simplify right side
    13,622.09x = 161,682,980.58
  5. Step 5: Solve for x
    x = 161,682,980.58/13,622.09
  6. Step 6: Final answer
    x = 11,869.18

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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.