Home / 12,545.85-18,817.81-4,644.66

Finding the Fourth Proportional to 12,545.85, 18,817.81 and 4,644.66

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Solution

The fourth proportional to 12,545.85, 18,817.81 and 4,644.66 is: 6,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.85 : 18,817.81 = 4,644.66 : x
  2. Step 2: Convert to fraction form
    12,545.85/18,817.81 = 4,644.66/x
  3. Step 3: Cross multiply
    12,545.85x = 18,817.81 × 4,644.66
  4. Step 4: Simplify right side
    12,545.85x = 87,402,329.39
  5. Step 5: Solve for x
    x = 87,402,329.39/12,545.85
  6. Step 6: Final answer
    x = 6,966.63

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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.