Home / 7,656.48-11,484.95-2,109.78

Finding the Fourth Proportional to 7,656.48, 11,484.95 and 2,109.78

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Solution

The fourth proportional to 7,656.48, 11,484.95 and 2,109.78 is: 3,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.48 : 11,484.95 = 2,109.78 : x
  2. Step 2: Convert to fraction form
    7,656.48/11,484.95 = 2,109.78/x
  3. Step 3: Cross multiply
    7,656.48x = 11,484.95 × 2,109.78
  4. Step 4: Simplify right side
    7,656.48x = 24,230,707.26
  5. Step 5: Solve for x
    x = 24,230,707.26/7,656.48
  6. Step 6: Final answer
    x = 3,164.73

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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.