Home / 13,545.50-20,320.49-4,660.46

Finding the Fourth Proportional to 13,545.50, 20,320.49 and 4,660.46

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Solution

The fourth proportional to 13,545.50, 20,320.49 and 4,660.46 is: 6,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.50 : 20,320.49 = 4,660.46 : x
  2. Step 2: Convert to fraction form
    13,545.50/20,320.49 = 4,660.46/x
  3. Step 3: Cross multiply
    13,545.50x = 20,320.49 × 4,660.46
  4. Step 4: Simplify right side
    13,545.50x = 94,702,817.08
  5. Step 5: Solve for x
    x = 94,702,817.08/13,545.50
  6. Step 6: Final answer
    x = 6,991.46

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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.