Home / 13,585.01-18,727.65-9,539.55

Finding the Fourth Proportional to 13,585.01, 18,727.65 and 9,539.55

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Solution

The fourth proportional to 13,585.01, 18,727.65 and 9,539.55 is: 13,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.01 : 18,727.65 = 9,539.55 : x
  2. Step 2: Convert to fraction form
    13,585.01/18,727.65 = 9,539.55/x
  3. Step 3: Cross multiply
    13,585.01x = 18,727.65 × 9,539.55
  4. Step 4: Simplify right side
    13,585.01x = 178,653,353.56
  5. Step 5: Solve for x
    x = 178,653,353.56/13,585.01
  6. Step 6: Final answer
    x = 13,150.78

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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.