Home / 8,788.15-12,127.49-4,809.19

Finding the Fourth Proportional to 8,788.15, 12,127.49 and 4,809.19

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Solution

The fourth proportional to 8,788.15, 12,127.49 and 4,809.19 is: 6,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.15 : 12,127.49 = 4,809.19 : x
  2. Step 2: Convert to fraction form
    8,788.15/12,127.49 = 4,809.19/x
  3. Step 3: Cross multiply
    8,788.15x = 12,127.49 × 4,809.19
  4. Step 4: Simplify right side
    8,788.15x = 58,323,318.95
  5. Step 5: Solve for x
    x = 58,323,318.95/8,788.15
  6. Step 6: Final answer
    x = 6,636.59

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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.