Home / 13,446.28-18,558.16-7,784.52

Finding the Fourth Proportional to 13,446.28, 18,558.16 and 7,784.52

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Solution

The fourth proportional to 13,446.28, 18,558.16 and 7,784.52 is: 10,743.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.28 : 18,558.16 = 7,784.52 : x
  2. Step 2: Convert to fraction form
    13,446.28/18,558.16 = 7,784.52/x
  3. Step 3: Cross multiply
    13,446.28x = 18,558.16 × 7,784.52
  4. Step 4: Simplify right side
    13,446.28x = 144,466,367.68
  5. Step 5: Solve for x
    x = 144,466,367.68/13,446.28
  6. Step 6: Final answer
    x = 10,743.97

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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.