Home / 21,716.15-29,969.02-12,763.53

Finding the Fourth Proportional to 21,716.15, 29,969.02 and 12,763.53

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Solution

The fourth proportional to 21,716.15, 29,969.02 and 12,763.53 is: 17,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716.15 : 29,969.02 = 12,763.53 : x
  2. Step 2: Convert to fraction form
    21,716.15/29,969.02 = 12,763.53/x
  3. Step 3: Cross multiply
    21,716.15x = 29,969.02 × 12,763.53
  4. Step 4: Simplify right side
    21,716.15x = 382,510,336.00
  5. Step 5: Solve for x
    x = 382,510,336.00/21,716.15
  6. Step 6: Final answer
    x = 17,614.10

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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.