Home / 8,887.40-12,264.54-4,908.78

Finding the Fourth Proportional to 8,887.40, 12,264.54 and 4,908.78

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Solution

The fourth proportional to 8,887.40, 12,264.54 and 4,908.78 is: 6,774.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.40 : 12,264.54 = 4,908.78 : x
  2. Step 2: Convert to fraction form
    8,887.40/12,264.54 = 4,908.78/x
  3. Step 3: Cross multiply
    8,887.40x = 12,264.54 × 4,908.78
  4. Step 4: Simplify right side
    8,887.40x = 60,203,928.66
  5. Step 5: Solve for x
    x = 60,203,928.66/8,887.40
  6. Step 6: Final answer
    x = 6,774.08

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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.