Home / 12,587.36-17,373.12-8,619.44

Finding the Fourth Proportional to 12,587.36, 17,373.12 and 8,619.44

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Solution

The fourth proportional to 12,587.36, 17,373.12 and 8,619.44 is: 11,896.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.36 : 17,373.12 = 8,619.44 : x
  2. Step 2: Convert to fraction form
    12,587.36/17,373.12 = 8,619.44/x
  3. Step 3: Cross multiply
    12,587.36x = 17,373.12 × 8,619.44
  4. Step 4: Simplify right side
    12,587.36x = 149,746,565.45
  5. Step 5: Solve for x
    x = 149,746,565.45/12,587.36
  6. Step 6: Final answer
    x = 11,896.58

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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.