Home / 16,989.48-23,418-12,675.24

Finding the Fourth Proportional to 16,989.48, 23,418 and 12,675.24

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Solution

The fourth proportional to 16,989.48, 23,418 and 12,675.24 is: 17,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.48 : 23,418 = 12,675.24 : x
  2. Step 2: Convert to fraction form
    16,989.48/23,418 = 12,675.24/x
  3. Step 3: Cross multiply
    16,989.48x = 23,418 × 12,675.24
  4. Step 4: Simplify right side
    16,989.48x = 296,828,770.32
  5. Step 5: Solve for x
    x = 296,828,770.32/16,989.48
  6. Step 6: Final answer
    x = 17,471.33

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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.