Home / 18,565.05-27,853.95-5,419.35

Finding the Fourth Proportional to 18,565.05, 27,853.95 and 5,419.35

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Solution

The fourth proportional to 18,565.05, 27,853.95 and 5,419.35 is: 8,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.05 : 27,853.95 = 5,419.35 : x
  2. Step 2: Convert to fraction form
    18,565.05/27,853.95 = 5,419.35/x
  3. Step 3: Cross multiply
    18,565.05x = 27,853.95 × 5,419.35
  4. Step 4: Simplify right side
    18,565.05x = 150,950,303.93
  5. Step 5: Solve for x
    x = 150,950,303.93/18,565.05
  6. Step 6: Final answer
    x = 8,130.89

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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.