Home / 10,509.99-15,764.45-3,114.51

Finding the Fourth Proportional to 10,509.99, 15,764.45 and 3,114.51

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Solution

The fourth proportional to 10,509.99, 15,764.45 and 3,114.51 is: 4,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.99 : 15,764.45 = 3,114.51 : x
  2. Step 2: Convert to fraction form
    10,509.99/15,764.45 = 3,114.51/x
  3. Step 3: Cross multiply
    10,509.99x = 15,764.45 × 3,114.51
  4. Step 4: Simplify right side
    10,509.99x = 49,098,521.60
  5. Step 5: Solve for x
    x = 49,098,521.60/10,509.99
  6. Step 6: Final answer
    x = 4,671.60

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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.