Home / 19,191.99-26,493.84-13,531.35

Finding the Fourth Proportional to 19,191.99, 26,493.84 and 13,531.35

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Solution

The fourth proportional to 19,191.99, 26,493.84 and 13,531.35 is: 18,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.99 : 26,493.84 = 13,531.35 : x
  2. Step 2: Convert to fraction form
    19,191.99/26,493.84 = 13,531.35/x
  3. Step 3: Cross multiply
    19,191.99x = 26,493.84 × 13,531.35
  4. Step 4: Simplify right side
    19,191.99x = 358,497,421.88
  5. Step 5: Solve for x
    x = 358,497,421.88/19,191.99
  6. Step 6: Final answer
    x = 18,679.53

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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.