Home / 10,134.90-13,986.14-5,658.64

Finding the Fourth Proportional to 10,134.90, 13,986.14 and 5,658.64

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Solution

The fourth proportional to 10,134.90, 13,986.14 and 5,658.64 is: 7,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.90 : 13,986.14 = 5,658.64 : x
  2. Step 2: Convert to fraction form
    10,134.90/13,986.14 = 5,658.64/x
  3. Step 3: Cross multiply
    10,134.90x = 13,986.14 × 5,658.64
  4. Step 4: Simplify right side
    10,134.90x = 79,142,531.25
  5. Step 5: Solve for x
    x = 79,142,531.25/10,134.90
  6. Step 6: Final answer
    x = 7,808.91

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1.5x scale

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.