Home / 10,680.90-14,739.70-5,900.79

Finding the Fourth Proportional to 10,680.90, 14,739.70 and 5,900.79

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Solution

The fourth proportional to 10,680.90, 14,739.70 and 5,900.79 is: 8,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,680.90 : 14,739.70 = 5,900.79 : x
  2. Step 2: Convert to fraction form
    10,680.90/14,739.70 = 5,900.79/x
  3. Step 3: Cross multiply
    10,680.90x = 14,739.70 × 5,900.79
  4. Step 4: Simplify right side
    10,680.90x = 86,975,874.36
  5. Step 5: Solve for x
    x = 86,975,874.36/10,680.90
  6. Step 6: Final answer
    x = 8,143.12

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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.