Home / 14,230.60-21,350.23-6,439.48

Finding the Fourth Proportional to 14,230.60, 21,350.23 and 6,439.48

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Solution

The fourth proportional to 14,230.60, 21,350.23 and 6,439.48 is: 9,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,230.60 : 21,350.23 = 6,439.48 : x
  2. Step 2: Convert to fraction form
    14,230.60/21,350.23 = 6,439.48/x
  3. Step 3: Cross multiply
    14,230.60x = 21,350.23 × 6,439.48
  4. Step 4: Simplify right side
    14,230.60x = 137,484,379.08
  5. Step 5: Solve for x
    x = 137,484,379.08/14,230.60
  6. Step 6: Final answer
    x = 9,661.18

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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.