Home / 10,426.32-15,638.67-4,186.08

Finding the Fourth Proportional to 10,426.32, 15,638.67 and 4,186.08

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Solution

The fourth proportional to 10,426.32, 15,638.67 and 4,186.08 is: 6,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.32 : 15,638.67 = 4,186.08 : x
  2. Step 2: Convert to fraction form
    10,426.32/15,638.67 = 4,186.08/x
  3. Step 3: Cross multiply
    10,426.32x = 15,638.67 × 4,186.08
  4. Step 4: Simplify right side
    10,426.32x = 65,464,723.71
  5. Step 5: Solve for x
    x = 65,464,723.71/10,426.32
  6. Step 6: Final answer
    x = 6,278.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.