Home / 12,300.19-18,450.29-5,275.66

Finding the Fourth Proportional to 12,300.19, 18,450.29 and 5,275.66

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Solution

The fourth proportional to 12,300.19, 18,450.29 and 5,275.66 is: 7,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.19 : 18,450.29 = 5,275.66 : x
  2. Step 2: Convert to fraction form
    12,300.19/18,450.29 = 5,275.66/x
  3. Step 3: Cross multiply
    12,300.19x = 18,450.29 × 5,275.66
  4. Step 4: Simplify right side
    12,300.19x = 97,337,456.94
  5. Step 5: Solve for x
    x = 97,337,456.94/12,300.19
  6. Step 6: Final answer
    x = 7,913.49

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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.