Home / 10,134.85-13,985.64-5,658.50

Finding the Fourth Proportional to 10,134.85, 13,985.64 and 5,658.50

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Solution

The fourth proportional to 10,134.85, 13,985.64 and 5,658.50 is: 7,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.85 : 13,985.64 = 5,658.50 : x
  2. Step 2: Convert to fraction form
    10,134.85/13,985.64 = 5,658.50/x
  3. Step 3: Cross multiply
    10,134.85x = 13,985.64 × 5,658.50
  4. Step 4: Simplify right side
    10,134.85x = 79,137,743.94
  5. Step 5: Solve for x
    x = 79,137,743.94/10,134.85
  6. Step 6: Final answer
    x = 7,808.48

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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.