Home / 18,438.09-27,657.15-4,587.09

Finding the Fourth Proportional to 18,438.09, 27,657.15 and 4,587.09

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Solution

The fourth proportional to 18,438.09, 27,657.15 and 4,587.09 is: 6,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.09 : 27,657.15 = 4,587.09 : x
  2. Step 2: Convert to fraction form
    18,438.09/27,657.15 = 4,587.09/x
  3. Step 3: Cross multiply
    18,438.09x = 27,657.15 × 4,587.09
  4. Step 4: Simplify right side
    18,438.09x = 126,865,836.19
  5. Step 5: Solve for x
    x = 126,865,836.19/18,438.09
  6. Step 6: Final answer
    x = 6,880.64

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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.