Home / 12,545.51-18,818.28-3,186.23

Finding the Fourth Proportional to 12,545.51, 18,818.28 and 3,186.23

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Solution

The fourth proportional to 12,545.51, 18,818.28 and 3,186.23 is: 4,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.51 : 18,818.28 = 3,186.23 : x
  2. Step 2: Convert to fraction form
    12,545.51/18,818.28 = 3,186.23/x
  3. Step 3: Cross multiply
    12,545.51x = 18,818.28 × 3,186.23
  4. Step 4: Simplify right side
    12,545.51x = 59,959,403.38
  5. Step 5: Solve for x
    x = 59,959,403.38/12,545.51
  6. Step 6: Final answer
    x = 4,779.35

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Half scale
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Double scale
Find fourth proportional to 12,546.51, 18,819.78 and 3,187.23
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.