Home / 18,640.40-25,722.24-10,683.32

Finding the Fourth Proportional to 18,640.40, 25,722.24 and 10,683.32

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Solution

The fourth proportional to 18,640.40, 25,722.24 and 10,683.32 is: 14,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.40 : 25,722.24 = 10,683.32 : x
  2. Step 2: Convert to fraction form
    18,640.40/25,722.24 = 10,683.32/x
  3. Step 3: Cross multiply
    18,640.40x = 25,722.24 × 10,683.32
  4. Step 4: Simplify right side
    18,640.40x = 274,798,921.04
  5. Step 5: Solve for x
    x = 274,798,921.04/18,640.40
  6. Step 6: Final answer
    x = 14,742.12

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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.