Home / 10,119.42-13,960.53-6,139.08

Finding the Fourth Proportional to 10,119.42, 13,960.53 and 6,139.08

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Solution

The fourth proportional to 10,119.42, 13,960.53 and 6,139.08 is: 8,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.42 : 13,960.53 = 6,139.08 : x
  2. Step 2: Convert to fraction form
    10,119.42/13,960.53 = 6,139.08/x
  3. Step 3: Cross multiply
    10,119.42x = 13,960.53 × 6,139.08
  4. Step 4: Simplify right side
    10,119.42x = 85,704,810.51
  5. Step 5: Solve for x
    x = 85,704,810.51/10,119.42
  6. Step 6: Final answer
    x = 8,469.34

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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.