Home / 8,788.47-12,129.27-5,653.77

Finding the Fourth Proportional to 8,788.47, 12,129.27 and 5,653.77

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Solution

The fourth proportional to 8,788.47, 12,129.27 and 5,653.77 is: 7,802.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.47 : 12,129.27 = 5,653.77 : x
  2. Step 2: Convert to fraction form
    8,788.47/12,129.27 = 5,653.77/x
  3. Step 3: Cross multiply
    8,788.47x = 12,129.27 × 5,653.77
  4. Step 4: Simplify right side
    8,788.47x = 68,576,102.85
  5. Step 5: Solve for x
    x = 68,576,102.85/8,788.47
  6. Step 6: Final answer
    x = 7,802.96

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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.