Home / 10,396.53-14,347.20-5,680.81

Finding the Fourth Proportional to 10,396.53, 14,347.20 and 5,680.81

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Solution

The fourth proportional to 10,396.53, 14,347.20 and 5,680.81 is: 7,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,396.53 : 14,347.20 = 5,680.81 : x
  2. Step 2: Convert to fraction form
    10,396.53/14,347.20 = 5,680.81/x
  3. Step 3: Cross multiply
    10,396.53x = 14,347.20 × 5,680.81
  4. Step 4: Simplify right side
    10,396.53x = 81,503,740.49
  5. Step 5: Solve for x
    x = 81,503,740.49/10,396.53
  6. Step 6: Final answer
    x = 7,839.51

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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.