Home / 8,666.09-11,959.19-4,687.20

Finding the Fourth Proportional to 8,666.09, 11,959.19 and 4,687.20

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Solution

The fourth proportional to 8,666.09, 11,959.19 and 4,687.20 is: 6,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.09 : 11,959.19 = 4,687.20 : x
  2. Step 2: Convert to fraction form
    8,666.09/11,959.19 = 4,687.20/x
  3. Step 3: Cross multiply
    8,666.09x = 11,959.19 × 4,687.20
  4. Step 4: Simplify right side
    8,666.09x = 56,055,045.87
  5. Step 5: Solve for x
    x = 56,055,045.87/8,666.09
  6. Step 6: Final answer
    x = 6,468.32

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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.