Home / 15,284.08-21,091.82-8,569.70

Finding the Fourth Proportional to 15,284.08, 21,091.82 and 8,569.70

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Solution

The fourth proportional to 15,284.08, 21,091.82 and 8,569.70 is: 11,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.08 : 21,091.82 = 8,569.70 : x
  2. Step 2: Convert to fraction form
    15,284.08/21,091.82 = 8,569.70/x
  3. Step 3: Cross multiply
    15,284.08x = 21,091.82 × 8,569.70
  4. Step 4: Simplify right side
    15,284.08x = 180,750,569.85
  5. Step 5: Solve for x
    x = 180,750,569.85/15,284.08
  6. Step 6: Final answer
    x = 11,826.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.