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Finding the Fourth Proportional to 11,018.77, 15,207.29 and 6,827.65

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Solution

The fourth proportional to 11,018.77, 15,207.29 and 6,827.65 is: 9,423.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.77 : 15,207.29 = 6,827.65 : x
  2. Step 2: Convert to fraction form
    11,018.77/15,207.29 = 6,827.65/x
  3. Step 3: Cross multiply
    11,018.77x = 15,207.29 × 6,827.65
  4. Step 4: Simplify right side
    11,018.77x = 103,830,007.02
  5. Step 5: Solve for x
    x = 103,830,007.02/11,018.77
  6. Step 6: Final answer
    x = 9,423.01

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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.