Home / 13,784.24-19,023.28-7,735.20

Finding the Fourth Proportional to 13,784.24, 19,023.28 and 7,735.20

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Solution

The fourth proportional to 13,784.24, 19,023.28 and 7,735.20 is: 10,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.24 : 19,023.28 = 7,735.20 : x
  2. Step 2: Convert to fraction form
    13,784.24/19,023.28 = 7,735.20/x
  3. Step 3: Cross multiply
    13,784.24x = 19,023.28 × 7,735.20
  4. Step 4: Simplify right side
    13,784.24x = 147,148,806.54
  5. Step 5: Solve for x
    x = 147,148,806.54/13,784.24
  6. Step 6: Final answer
    x = 10,675.15

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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.