Home / 19,118.15-28,681.21-9,635.80

Finding the Fourth Proportional to 19,118.15, 28,681.21 and 9,635.80

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Solution

The fourth proportional to 19,118.15, 28,681.21 and 9,635.80 is: 14,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.15 : 28,681.21 = 9,635.80 : x
  2. Step 2: Convert to fraction form
    19,118.15/28,681.21 = 9,635.80/x
  3. Step 3: Cross multiply
    19,118.15x = 28,681.21 × 9,635.80
  4. Step 4: Simplify right side
    19,118.15x = 276,366,211.73
  5. Step 5: Solve for x
    x = 276,366,211.73/19,118.15
  6. Step 6: Final answer
    x = 14,455.70

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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.