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Finding the Fourth Proportional to 8,656.99, 11,939.86 and 6,267.32

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Solution

The fourth proportional to 8,656.99, 11,939.86 and 6,267.32 is: 8,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.99 : 11,939.86 = 6,267.32 : x
  2. Step 2: Convert to fraction form
    8,656.99/11,939.86 = 6,267.32/x
  3. Step 3: Cross multiply
    8,656.99x = 11,939.86 × 6,267.32
  4. Step 4: Simplify right side
    8,656.99x = 74,830,948.19
  5. Step 5: Solve for x
    x = 74,830,948.19/8,656.99
  6. Step 6: Final answer
    x = 8,643.99

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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.