Home / 8,445.77-11,655.89-4,908.75

Finding the Fourth Proportional to 8,445.77, 11,655.89 and 4,908.75

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Solution

The fourth proportional to 8,445.77, 11,655.89 and 4,908.75 is: 6,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.77 : 11,655.89 = 4,908.75 : x
  2. Step 2: Convert to fraction form
    8,445.77/11,655.89 = 4,908.75/x
  3. Step 3: Cross multiply
    8,445.77x = 11,655.89 × 4,908.75
  4. Step 4: Simplify right side
    8,445.77x = 57,215,825.49
  5. Step 5: Solve for x
    x = 57,215,825.49/8,445.77
  6. Step 6: Final answer
    x = 6,774.50

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Half scale
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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.