Home / 19,823.12-27,374.02-12,761.54

Finding the Fourth Proportional to 19,823.12, 27,374.02 and 12,761.54

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Solution

The fourth proportional to 19,823.12, 27,374.02 and 12,761.54 is: 17,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.12 : 27,374.02 = 12,761.54 : x
  2. Step 2: Convert to fraction form
    19,823.12/27,374.02 = 12,761.54/x
  3. Step 3: Cross multiply
    19,823.12x = 27,374.02 × 12,761.54
  4. Step 4: Simplify right side
    19,823.12x = 349,334,651.19
  5. Step 5: Solve for x
    x = 349,334,651.19/19,823.12
  6. Step 6: Final answer
    x = 17,622.59

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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.