Home / 8,901.12-13,338.88-4,999.68

Finding the Fourth Proportional to 8,901.12, 13,338.88 and 4,999.68

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Solution

The fourth proportional to 8,901.12, 13,338.88 and 4,999.68 is: 7,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.12 : 13,338.88 = 4,999.68 : x
  2. Step 2: Convert to fraction form
    8,901.12/13,338.88 = 4,999.68/x
  3. Step 3: Cross multiply
    8,901.12x = 13,338.88 × 4,999.68
  4. Step 4: Simplify right side
    8,901.12x = 66,690,131.56
  5. Step 5: Solve for x
    x = 66,690,131.56/8,901.12
  6. Step 6: Final answer
    x = 7,492.33

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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.