Home / 8,854.29-13,284.72-3,920.40

Finding the Fourth Proportional to 8,854.29, 13,284.72 and 3,920.40

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Solution

The fourth proportional to 8,854.29, 13,284.72 and 3,920.40 is: 5,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.29 : 13,284.72 = 3,920.40 : x
  2. Step 2: Convert to fraction form
    8,854.29/13,284.72 = 3,920.40/x
  3. Step 3: Cross multiply
    8,854.29x = 13,284.72 × 3,920.40
  4. Step 4: Simplify right side
    8,854.29x = 52,081,416.29
  5. Step 5: Solve for x
    x = 52,081,416.29/8,854.29
  6. Step 6: Final answer
    x = 5,882.05

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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.