Home / 13,490.54-20,235.83-4,723.40

Finding the Fourth Proportional to 13,490.54, 20,235.83 and 4,723.40

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Solution

The fourth proportional to 13,490.54, 20,235.83 and 4,723.40 is: 7,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.54 : 20,235.83 = 4,723.40 : x
  2. Step 2: Convert to fraction form
    13,490.54/20,235.83 = 4,723.40/x
  3. Step 3: Cross multiply
    13,490.54x = 20,235.83 × 4,723.40
  4. Step 4: Simplify right side
    13,490.54x = 95,581,895.81
  5. Step 5: Solve for x
    x = 95,581,895.81/13,490.54
  6. Step 6: Final answer
    x = 7,085.11

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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.