Home / 26,326.08-39,509.84-12,278.88

Finding the Fourth Proportional to 26,326.08, 39,509.84 and 12,278.88

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Solution

The fourth proportional to 26,326.08, 39,509.84 and 12,278.88 is: 18,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,326.08 : 39,509.84 = 12,278.88 : x
  2. Step 2: Convert to fraction form
    26,326.08/39,509.84 = 12,278.88/x
  3. Step 3: Cross multiply
    26,326.08x = 39,509.84 × 12,278.88
  4. Step 4: Simplify right side
    26,326.08x = 485,136,584.18
  5. Step 5: Solve for x
    x = 485,136,584.18/26,326.08
  6. Step 6: Final answer
    x = 18,427.98

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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.