Home / 12,423.96-17,145.90-6,835.32

Finding the Fourth Proportional to 12,423.96, 17,145.90 and 6,835.32

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Solution

The fourth proportional to 12,423.96, 17,145.90 and 6,835.32 is: 9,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.96 : 17,145.90 = 6,835.32 : x
  2. Step 2: Convert to fraction form
    12,423.96/17,145.90 = 6,835.32/x
  3. Step 3: Cross multiply
    12,423.96x = 17,145.90 × 6,835.32
  4. Step 4: Simplify right side
    12,423.96x = 117,197,713.19
  5. Step 5: Solve for x
    x = 117,197,713.19/12,423.96
  6. Step 6: Final answer
    x = 9,433.20

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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.