Home / 8,788.15-12,127.48-4,809.16

Finding the Fourth Proportional to 8,788.15, 12,127.48 and 4,809.16

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Solution

The fourth proportional to 8,788.15, 12,127.48 and 4,809.16 is: 6,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.15 : 12,127.48 = 4,809.16 : x
  2. Step 2: Convert to fraction form
    8,788.15/12,127.48 = 4,809.16/x
  3. Step 3: Cross multiply
    8,788.15x = 12,127.48 × 4,809.16
  4. Step 4: Simplify right side
    8,788.15x = 58,322,991.72
  5. Step 5: Solve for x
    x = 58,322,991.72/8,788.15
  6. Step 6: Final answer
    x = 6,636.55

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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.