Home / 13,158.03-18,149.60-7,848.75

Finding the Fourth Proportional to 13,158.03, 18,149.60 and 7,848.75

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Solution

The fourth proportional to 13,158.03, 18,149.60 and 7,848.75 is: 10,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.03 : 18,149.60 = 7,848.75 : x
  2. Step 2: Convert to fraction form
    13,158.03/18,149.60 = 7,848.75/x
  3. Step 3: Cross multiply
    13,158.03x = 18,149.60 × 7,848.75
  4. Step 4: Simplify right side
    13,158.03x = 142,451,633.76
  5. Step 5: Solve for x
    x = 142,451,633.76/13,158.03
  6. Step 6: Final answer
    x = 10,826.21

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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.