Home / 16,858.89-23,258.07-10,140.57

Finding the Fourth Proportional to 16,858.89, 23,258.07 and 10,140.57

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Solution

The fourth proportional to 16,858.89, 23,258.07 and 10,140.57 is: 13,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.89 : 23,258.07 = 10,140.57 : x
  2. Step 2: Convert to fraction form
    16,858.89/23,258.07 = 10,140.57/x
  3. Step 3: Cross multiply
    16,858.89x = 23,258.07 × 10,140.57
  4. Step 4: Simplify right side
    16,858.89x = 235,850,086.90
  5. Step 5: Solve for x
    x = 235,850,086.90/16,858.89
  6. Step 6: Final answer
    x = 13,989.66

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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.