Home / 7,212.86-9,953.34-4,068.86

Finding the Fourth Proportional to 7,212.86, 9,953.34 and 4,068.86

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Solution

The fourth proportional to 7,212.86, 9,953.34 and 4,068.86 is: 5,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.86 : 9,953.34 = 4,068.86 : x
  2. Step 2: Convert to fraction form
    7,212.86/9,953.34 = 4,068.86/x
  3. Step 3: Cross multiply
    7,212.86x = 9,953.34 × 4,068.86
  4. Step 4: Simplify right side
    7,212.86x = 40,498,746.99
  5. Step 5: Solve for x
    x = 40,498,746.99/7,212.86
  6. Step 6: Final answer
    x = 5,614.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.