Home / 18,969.15-28,415.61-9,452.76

Finding the Fourth Proportional to 18,969.15, 28,415.61 and 9,452.76

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Solution

The fourth proportional to 18,969.15, 28,415.61 and 9,452.76 is: 14,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.15 : 28,415.61 = 9,452.76 : x
  2. Step 2: Convert to fraction form
    18,969.15/28,415.61 = 9,452.76/x
  3. Step 3: Cross multiply
    18,969.15x = 28,415.61 × 9,452.76
  4. Step 4: Simplify right side
    18,969.15x = 268,605,941.58
  5. Step 5: Solve for x
    x = 268,605,941.58/18,969.15
  6. Step 6: Final answer
    x = 14,160.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.