Home / 13,930.64-19,219.01-8,895.09

Finding the Fourth Proportional to 13,930.64, 19,219.01 and 8,895.09

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Solution

The fourth proportional to 13,930.64, 19,219.01 and 8,895.09 is: 12,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.64 : 19,219.01 = 8,895.09 : x
  2. Step 2: Convert to fraction form
    13,930.64/19,219.01 = 8,895.09/x
  3. Step 3: Cross multiply
    13,930.64x = 19,219.01 × 8,895.09
  4. Step 4: Simplify right side
    13,930.64x = 170,954,779.19
  5. Step 5: Solve for x
    x = 170,954,779.19/13,930.64
  6. Step 6: Final answer
    x = 12,271.86

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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.