Home / 10,206.12-14,082.33-5,729.45

Finding the Fourth Proportional to 10,206.12, 14,082.33 and 5,729.45

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Solution

The fourth proportional to 10,206.12, 14,082.33 and 5,729.45 is: 7,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.12 : 14,082.33 = 5,729.45 : x
  2. Step 2: Convert to fraction form
    10,206.12/14,082.33 = 5,729.45/x
  3. Step 3: Cross multiply
    10,206.12x = 14,082.33 × 5,729.45
  4. Step 4: Simplify right side
    10,206.12x = 80,683,935.21
  5. Step 5: Solve for x
    x = 80,683,935.21/10,206.12
  6. Step 6: Final answer
    x = 7,905.45

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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.