Home / 12,300.84-18,451.26-5,276.30

Finding the Fourth Proportional to 12,300.84, 18,451.26 and 5,276.30

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Solution

The fourth proportional to 12,300.84, 18,451.26 and 5,276.30 is: 7,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.84 : 18,451.26 = 5,276.30 : x
  2. Step 2: Convert to fraction form
    12,300.84/18,451.26 = 5,276.30/x
  3. Step 3: Cross multiply
    12,300.84x = 18,451.26 × 5,276.30
  4. Step 4: Simplify right side
    12,300.84x = 97,354,383.14
  5. Step 5: Solve for x
    x = 97,354,383.14/12,300.84
  6. Step 6: Final answer
    x = 7,914.45

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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.