Home / 10,145.02-13,998.75-5,668.21

Finding the Fourth Proportional to 10,145.02, 13,998.75 and 5,668.21

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Solution

The fourth proportional to 10,145.02, 13,998.75 and 5,668.21 is: 7,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.02 : 13,998.75 = 5,668.21 : x
  2. Step 2: Convert to fraction form
    10,145.02/13,998.75 = 5,668.21/x
  3. Step 3: Cross multiply
    10,145.02x = 13,998.75 × 5,668.21
  4. Step 4: Simplify right side
    10,145.02x = 79,347,854.74
  5. Step 5: Solve for x
    x = 79,347,854.74/10,145.02
  6. Step 6: Final answer
    x = 7,821.36

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Half scale
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Double scale
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Similar ratio
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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.