Home / 28,514.16-42,763.68-8,518.92

Finding the Fourth Proportional to 28,514.16, 42,763.68 and 8,518.92

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Solution

The fourth proportional to 28,514.16, 42,763.68 and 8,518.92 is: 12,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.16 : 42,763.68 = 8,518.92 : x
  2. Step 2: Convert to fraction form
    28,514.16/42,763.68 = 8,518.92/x
  3. Step 3: Cross multiply
    28,514.16x = 42,763.68 × 8,518.92
  4. Step 4: Simplify right side
    28,514.16x = 364,300,368.83
  5. Step 5: Solve for x
    x = 364,300,368.83/28,514.16
  6. Step 6: Final answer
    x = 12,776.12

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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.