Home / 10,655.94-15,986.43-4,812.51

Finding the Fourth Proportional to 10,655.94, 15,986.43 and 4,812.51

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Solution

The fourth proportional to 10,655.94, 15,986.43 and 4,812.51 is: 7,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.94 : 15,986.43 = 4,812.51 : x
  2. Step 2: Convert to fraction form
    10,655.94/15,986.43 = 4,812.51/x
  3. Step 3: Cross multiply
    10,655.94x = 15,986.43 × 4,812.51
  4. Step 4: Simplify right side
    10,655.94x = 76,934,854.24
  5. Step 5: Solve for x
    x = 76,934,854.24/10,655.94
  6. Step 6: Final answer
    x = 7,219.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.