Home / 19,118.12-28,644.86-9,262.12

Finding the Fourth Proportional to 19,118.12, 28,644.86 and 9,262.12

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Solution

The fourth proportional to 19,118.12, 28,644.86 and 9,262.12 is: 13,877.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.12 : 28,644.86 = 9,262.12 : x
  2. Step 2: Convert to fraction form
    19,118.12/28,644.86 = 9,262.12/x
  3. Step 3: Cross multiply
    19,118.12x = 28,644.86 × 9,262.12
  4. Step 4: Simplify right side
    19,118.12x = 265,312,130.70
  5. Step 5: Solve for x
    x = 265,312,130.70/19,118.12
  6. Step 6: Final answer
    x = 13,877.52

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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.