Home / 8,431.77-11,636.51-4,655.28

Finding the Fourth Proportional to 8,431.77, 11,636.51 and 4,655.28

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Solution

The fourth proportional to 8,431.77, 11,636.51 and 4,655.28 is: 6,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.77 : 11,636.51 = 4,655.28 : x
  2. Step 2: Convert to fraction form
    8,431.77/11,636.51 = 4,655.28/x
  3. Step 3: Cross multiply
    8,431.77x = 11,636.51 × 4,655.28
  4. Step 4: Simplify right side
    8,431.77x = 54,171,189.00
  5. Step 5: Solve for x
    x = 54,171,189.00/8,431.77
  6. Step 6: Final answer
    x = 6,424.65

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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.