Home / 12,545.95-18,818.93-3,186.67

Finding the Fourth Proportional to 12,545.95, 18,818.93 and 3,186.67

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Solution

The fourth proportional to 12,545.95, 18,818.93 and 3,186.67 is: 4,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.95 : 18,818.93 = 3,186.67 : x
  2. Step 2: Convert to fraction form
    12,545.95/18,818.93 = 3,186.67/x
  3. Step 3: Cross multiply
    12,545.95x = 18,818.93 × 3,186.67
  4. Step 4: Simplify right side
    12,545.95x = 59,969,719.66
  5. Step 5: Solve for x
    x = 59,969,719.66/12,545.95
  6. Step 6: Final answer
    x = 4,780.01

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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.