Home / 8,218.10-11,342.16-4,681.64

Finding the Fourth Proportional to 8,218.10, 11,342.16 and 4,681.64

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Solution

The fourth proportional to 8,218.10, 11,342.16 and 4,681.64 is: 6,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.10 : 11,342.16 = 4,681.64 : x
  2. Step 2: Convert to fraction form
    8,218.10/11,342.16 = 4,681.64/x
  3. Step 3: Cross multiply
    8,218.10x = 11,342.16 × 4,681.64
  4. Step 4: Simplify right side
    8,218.10x = 53,099,909.94
  5. Step 5: Solve for x
    x = 53,099,909.94/8,218.10
  6. Step 6: Final answer
    x = 6,461.34

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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.