Home / 19,862.02-27,415.73-12,788.43

Finding the Fourth Proportional to 19,862.02, 27,415.73 and 12,788.43

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Solution

The fourth proportional to 19,862.02, 27,415.73 and 12,788.43 is: 17,651.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.02 : 27,415.73 = 12,788.43 : x
  2. Step 2: Convert to fraction form
    19,862.02/27,415.73 = 12,788.43/x
  3. Step 3: Cross multiply
    19,862.02x = 27,415.73 × 12,788.43
  4. Step 4: Simplify right side
    19,862.02x = 350,604,144.00
  5. Step 5: Solve for x
    x = 350,604,144.00/19,862.02
  6. Step 6: Final answer
    x = 17,651.99

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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.