Home / 8,423.11-11,623.75-4,646.64

Finding the Fourth Proportional to 8,423.11, 11,623.75 and 4,646.64

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Solution

The fourth proportional to 8,423.11, 11,623.75 and 4,646.64 is: 6,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.11 : 11,623.75 = 4,646.64 : x
  2. Step 2: Convert to fraction form
    8,423.11/11,623.75 = 4,646.64/x
  3. Step 3: Cross multiply
    8,423.11x = 11,623.75 × 4,646.64
  4. Step 4: Simplify right side
    8,423.11x = 54,011,407.12
  5. Step 5: Solve for x
    x = 54,011,407.12/8,423.11
  6. Step 6: Final answer
    x = 6,412.28

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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.