Home / 13,875.62-19,147.39-8,765.18

Finding the Fourth Proportional to 13,875.62, 19,147.39 and 8,765.18

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Solution

The fourth proportional to 13,875.62, 19,147.39 and 8,765.18 is: 12,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.62 : 19,147.39 = 8,765.18 : x
  2. Step 2: Convert to fraction form
    13,875.62/19,147.39 = 8,765.18/x
  3. Step 3: Cross multiply
    13,875.62x = 19,147.39 × 8,765.18
  4. Step 4: Simplify right side
    13,875.62x = 167,830,319.88
  5. Step 5: Solve for x
    x = 167,830,319.88/13,875.62
  6. Step 6: Final answer
    x = 12,095.34

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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.