Home / 8,788.45-12,127.44-5,011.77

Finding the Fourth Proportional to 8,788.45, 12,127.44 and 5,011.77

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Solution

The fourth proportional to 8,788.45, 12,127.44 and 5,011.77 is: 6,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.45 : 12,127.44 = 5,011.77 : x
  2. Step 2: Convert to fraction form
    8,788.45/12,127.44 = 5,011.77/x
  3. Step 3: Cross multiply
    8,788.45x = 12,127.44 × 5,011.77
  4. Step 4: Simplify right side
    8,788.45x = 60,779,976.05
  5. Step 5: Solve for x
    x = 60,779,976.05/8,788.45
  6. Step 6: Final answer
    x = 6,915.89

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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.