Home / 18,388.68-27,587.62-5,909.80

Finding the Fourth Proportional to 18,388.68, 27,587.62 and 5,909.80

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Solution

The fourth proportional to 18,388.68, 27,587.62 and 5,909.80 is: 8,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.68 : 27,587.62 = 5,909.80 : x
  2. Step 2: Convert to fraction form
    18,388.68/27,587.62 = 5,909.80/x
  3. Step 3: Cross multiply
    18,388.68x = 27,587.62 × 5,909.80
  4. Step 4: Simplify right side
    18,388.68x = 163,037,316.68
  5. Step 5: Solve for x
    x = 163,037,316.68/18,388.68
  6. Step 6: Final answer
    x = 8,866.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.