Home / 10,712.86-16,075.36-5,782.39

Finding the Fourth Proportional to 10,712.86, 16,075.36 and 5,782.39

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Solution

The fourth proportional to 10,712.86, 16,075.36 and 5,782.39 is: 8,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.86 : 16,075.36 = 5,782.39 : x
  2. Step 2: Convert to fraction form
    10,712.86/16,075.36 = 5,782.39/x
  3. Step 3: Cross multiply
    10,712.86x = 16,075.36 × 5,782.39
  4. Step 4: Simplify right side
    10,712.86x = 92,953,946.27
  5. Step 5: Solve for x
    x = 92,953,946.27/10,712.86
  6. Step 6: Final answer
    x = 8,676.86

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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.