Home / 13,558.38-18,710.33-7,508.50

Finding the Fourth Proportional to 13,558.38, 18,710.33 and 7,508.50

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Solution

The fourth proportional to 13,558.38, 18,710.33 and 7,508.50 is: 10,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.38 : 18,710.33 = 7,508.50 : x
  2. Step 2: Convert to fraction form
    13,558.38/18,710.33 = 7,508.50/x
  3. Step 3: Cross multiply
    13,558.38x = 18,710.33 × 7,508.50
  4. Step 4: Simplify right side
    13,558.38x = 140,486,512.81
  5. Step 5: Solve for x
    x = 140,486,512.81/13,558.38
  6. Step 6: Final answer
    x = 10,361.60

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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.