Home / 7,646.86-10,553.72-4,289.89

Finding the Fourth Proportional to 7,646.86, 10,553.72 and 4,289.89

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Solution

The fourth proportional to 7,646.86, 10,553.72 and 4,289.89 is: 5,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,646.86 : 10,553.72 = 4,289.89 : x
  2. Step 2: Convert to fraction form
    7,646.86/10,553.72 = 4,289.89/x
  3. Step 3: Cross multiply
    7,646.86x = 10,553.72 × 4,289.89
  4. Step 4: Simplify right side
    7,646.86x = 45,274,323.90
  5. Step 5: Solve for x
    x = 45,274,323.90/7,646.86
  6. Step 6: Final answer
    x = 5,920.64

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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.