Home / 13,264.32-18,198.40-12,919.36

Finding the Fourth Proportional to 13,264.32, 18,198.40 and 12,919.36

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Solution

The fourth proportional to 13,264.32, 18,198.40 and 12,919.36 is: 17,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,264.32 : 18,198.40 = 12,919.36 : x
  2. Step 2: Convert to fraction form
    13,264.32/18,198.40 = 12,919.36/x
  3. Step 3: Cross multiply
    13,264.32x = 18,198.40 × 12,919.36
  4. Step 4: Simplify right side
    13,264.32x = 235,111,681.02
  5. Step 5: Solve for x
    x = 235,111,681.02/13,264.32
  6. Step 6: Final answer
    x = 17,725.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.