Home / 10,960.46-15,130.23-6,986.80

Finding the Fourth Proportional to 10,960.46, 15,130.23 and 6,986.80

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Solution

The fourth proportional to 10,960.46, 15,130.23 and 6,986.80 is: 9,644.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,960.46 : 15,130.23 = 6,986.80 : x
  2. Step 2: Convert to fraction form
    10,960.46/15,130.23 = 6,986.80/x
  3. Step 3: Cross multiply
    10,960.46x = 15,130.23 × 6,986.80
  4. Step 4: Simplify right side
    10,960.46x = 105,711,883.68
  5. Step 5: Solve for x
    x = 105,711,883.68/10,960.46
  6. Step 6: Final answer
    x = 9,644.84

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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.