Home / 16,989.99-23,445.38-9,436.80

Finding the Fourth Proportional to 16,989.99, 23,445.38 and 9,436.80

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Solution

The fourth proportional to 16,989.99, 23,445.38 and 9,436.80 is: 13,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.99 : 23,445.38 = 9,436.80 : x
  2. Step 2: Convert to fraction form
    16,989.99/23,445.38 = 9,436.80/x
  3. Step 3: Cross multiply
    16,989.99x = 23,445.38 × 9,436.80
  4. Step 4: Simplify right side
    16,989.99x = 221,249,314.80
  5. Step 5: Solve for x
    x = 221,249,314.80/16,989.99
  6. Step 6: Final answer
    x = 13,022.33

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Double scale
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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.