Home / 13,584.10-18,746.02-7,615.75

Finding the Fourth Proportional to 13,584.10, 18,746.02 and 7,615.75

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Solution

The fourth proportional to 13,584.10, 18,746.02 and 7,615.75 is: 10,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.10 : 18,746.02 = 7,615.75 : x
  2. Step 2: Convert to fraction form
    13,584.10/18,746.02 = 7,615.75/x
  3. Step 3: Cross multiply
    13,584.10x = 18,746.02 × 7,615.75
  4. Step 4: Simplify right side
    13,584.10x = 142,765,001.82
  5. Step 5: Solve for x
    x = 142,765,001.82/13,584.10
  6. Step 6: Final answer
    x = 10,509.71

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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.