Home / 18,088.95-27,135.90-5,609.91

Finding the Fourth Proportional to 18,088.95, 27,135.90 and 5,609.91

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Solution

The fourth proportional to 18,088.95, 27,135.90 and 5,609.91 is: 8,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.95 : 27,135.90 = 5,609.91 : x
  2. Step 2: Convert to fraction form
    18,088.95/27,135.90 = 5,609.91/x
  3. Step 3: Cross multiply
    18,088.95x = 27,135.90 × 5,609.91
  4. Step 4: Simplify right side
    18,088.95x = 152,229,956.77
  5. Step 5: Solve for x
    x = 152,229,956.77/18,088.95
  6. Step 6: Final answer
    x = 8,415.63

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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.