Home / 10,455.16-14,428.38-5,739.44

Finding the Fourth Proportional to 10,455.16, 14,428.38 and 5,739.44

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Solution

The fourth proportional to 10,455.16, 14,428.38 and 5,739.44 is: 7,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.16 : 14,428.38 = 5,739.44 : x
  2. Step 2: Convert to fraction form
    10,455.16/14,428.38 = 5,739.44/x
  3. Step 3: Cross multiply
    10,455.16x = 14,428.38 × 5,739.44
  4. Step 4: Simplify right side
    10,455.16x = 82,810,821.31
  5. Step 5: Solve for x
    x = 82,810,821.31/10,455.16
  6. Step 6: Final answer
    x = 7,920.57

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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.