Home / 17,987.36-26,977.95-8,124.32

Finding the Fourth Proportional to 17,987.36, 26,977.95 and 8,124.32

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Solution

The fourth proportional to 17,987.36, 26,977.95 and 8,124.32 is: 12,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.36 : 26,977.95 = 8,124.32 : x
  2. Step 2: Convert to fraction form
    17,987.36/26,977.95 = 8,124.32/x
  3. Step 3: Cross multiply
    17,987.36x = 26,977.95 × 8,124.32
  4. Step 4: Simplify right side
    17,987.36x = 219,177,363.85
  5. Step 5: Solve for x
    x = 219,177,363.85/17,987.36
  6. Step 6: Final answer
    x = 12,185.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.