Home / 14,087.16-21,130.76-3,698.88

Finding the Fourth Proportional to 14,087.16, 21,130.76 and 3,698.88

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Solution

The fourth proportional to 14,087.16, 21,130.76 and 3,698.88 is: 5,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.16 : 21,130.76 = 3,698.88 : x
  2. Step 2: Convert to fraction form
    14,087.16/21,130.76 = 3,698.88/x
  3. Step 3: Cross multiply
    14,087.16x = 21,130.76 × 3,698.88
  4. Step 4: Simplify right side
    14,087.16x = 78,160,145.55
  5. Step 5: Solve for x
    x = 78,160,145.55/14,087.16
  6. Step 6: Final answer
    x = 5,548.33

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.