Home / 18,926.24-26,131.36-12,656.80

Finding the Fourth Proportional to 18,926.24, 26,131.36 and 12,656.80

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Solution

The fourth proportional to 18,926.24, 26,131.36 and 12,656.80 is: 17,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.24 : 26,131.36 = 12,656.80 : x
  2. Step 2: Convert to fraction form
    18,926.24/26,131.36 = 12,656.80/x
  3. Step 3: Cross multiply
    18,926.24x = 26,131.36 × 12,656.80
  4. Step 4: Simplify right side
    18,926.24x = 330,739,397.25
  5. Step 5: Solve for x
    x = 330,739,397.25/18,926.24
  6. Step 6: Final answer
    x = 17,475.18

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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.