Home / 14,242.86-21,356.46-4,379.40

Finding the Fourth Proportional to 14,242.86, 21,356.46 and 4,379.40

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Solution

The fourth proportional to 14,242.86, 21,356.46 and 4,379.40 is: 6,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.86 : 21,356.46 = 4,379.40 : x
  2. Step 2: Convert to fraction form
    14,242.86/21,356.46 = 4,379.40/x
  3. Step 3: Cross multiply
    14,242.86x = 21,356.46 × 4,379.40
  4. Step 4: Simplify right side
    14,242.86x = 93,528,480.92
  5. Step 5: Solve for x
    x = 93,528,480.92/14,242.86
  6. Step 6: Final answer
    x = 6,566.69

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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.