Home / 13,545.23-20,314.65-5,647.88

Finding the Fourth Proportional to 13,545.23, 20,314.65 and 5,647.88

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Solution

The fourth proportional to 13,545.23, 20,314.65 and 5,647.88 is: 8,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.23 : 20,314.65 = 5,647.88 : x
  2. Step 2: Convert to fraction form
    13,545.23/20,314.65 = 5,647.88/x
  3. Step 3: Cross multiply
    13,545.23x = 20,314.65 × 5,647.88
  4. Step 4: Simplify right side
    13,545.23x = 114,734,631.37
  5. Step 5: Solve for x
    x = 114,734,631.37/13,545.23
  6. Step 6: Final answer
    x = 8,470.49

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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.