Home / 18,703.38-25,808.86-10,319.34

Finding the Fourth Proportional to 18,703.38, 25,808.86 and 10,319.34

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Solution

The fourth proportional to 18,703.38, 25,808.86 and 10,319.34 is: 14,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.38 : 25,808.86 = 10,319.34 : x
  2. Step 2: Convert to fraction form
    18,703.38/25,808.86 = 10,319.34/x
  3. Step 3: Cross multiply
    18,703.38x = 25,808.86 × 10,319.34
  4. Step 4: Simplify right side
    18,703.38x = 266,330,401.35
  5. Step 5: Solve for x
    x = 266,330,401.35/18,703.38
  6. Step 6: Final answer
    x = 14,239.69

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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.