Home / 10,455.24-14,428.18-5,739.64

Finding the Fourth Proportional to 10,455.24, 14,428.18 and 5,739.64

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Solution

The fourth proportional to 10,455.24, 14,428.18 and 5,739.64 is: 7,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.24 : 14,428.18 = 5,739.64 : x
  2. Step 2: Convert to fraction form
    10,455.24/14,428.18 = 5,739.64/x
  3. Step 3: Cross multiply
    10,455.24x = 14,428.18 × 5,739.64
  4. Step 4: Simplify right side
    10,455.24x = 82,812,559.06
  5. Step 5: Solve for x
    x = 82,812,559.06/10,455.24
  6. Step 6: Final answer
    x = 7,920.68

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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.