Home / 10,782.52-14,880.21-5,871.47

Finding the Fourth Proportional to 10,782.52, 14,880.21 and 5,871.47

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Solution

The fourth proportional to 10,782.52, 14,880.21 and 5,871.47 is: 8,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.52 : 14,880.21 = 5,871.47 : x
  2. Step 2: Convert to fraction form
    10,782.52/14,880.21 = 5,871.47/x
  3. Step 3: Cross multiply
    10,782.52x = 14,880.21 × 5,871.47
  4. Step 4: Simplify right side
    10,782.52x = 87,368,631.11
  5. Step 5: Solve for x
    x = 87,368,631.11/10,782.52
  6. Step 6: Final answer
    x = 8,102.80

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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.