Home / 10,509.75-15,764.72-2,718.09

Finding the Fourth Proportional to 10,509.75, 15,764.72 and 2,718.09

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Solution

The fourth proportional to 10,509.75, 15,764.72 and 2,718.09 is: 4,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.75 : 15,764.72 = 2,718.09 : x
  2. Step 2: Convert to fraction form
    10,509.75/15,764.72 = 2,718.09/x
  3. Step 3: Cross multiply
    10,509.75x = 15,764.72 × 2,718.09
  4. Step 4: Simplify right side
    10,509.75x = 42,849,914.19
  5. Step 5: Solve for x
    x = 42,849,914.19/10,509.75
  6. Step 6: Final answer
    x = 4,077.16

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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.