Home / 11,819.95-16,312.33-6,514.77

Finding the Fourth Proportional to 11,819.95, 16,312.33 and 6,514.77

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Solution

The fourth proportional to 11,819.95, 16,312.33 and 6,514.77 is: 8,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.95 : 16,312.33 = 6,514.77 : x
  2. Step 2: Convert to fraction form
    11,819.95/16,312.33 = 6,514.77/x
  3. Step 3: Cross multiply
    11,819.95x = 16,312.33 × 6,514.77
  4. Step 4: Simplify right side
    11,819.95x = 106,271,078.11
  5. Step 5: Solve for x
    x = 106,271,078.11/11,819.95
  6. Step 6: Final answer
    x = 8,990.82

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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.