Home / 13,584.24-18,746.94-7,615.55

Finding the Fourth Proportional to 13,584.24, 18,746.94 and 7,615.55

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Solution

The fourth proportional to 13,584.24, 18,746.94 and 7,615.55 is: 10,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.24 : 18,746.94 = 7,615.55 : x
  2. Step 2: Convert to fraction form
    13,584.24/18,746.94 = 7,615.55/x
  3. Step 3: Cross multiply
    13,584.24x = 18,746.94 × 7,615.55
  4. Step 4: Simplify right side
    13,584.24x = 142,768,334.34
  5. Step 5: Solve for x
    x = 142,768,334.34/13,584.24
  6. Step 6: Final answer
    x = 10,509.85

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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.