Home / 7,887.12-10,884.98-5,894.21

Finding the Fourth Proportional to 7,887.12, 10,884.98 and 5,894.21

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Solution

The fourth proportional to 7,887.12, 10,884.98 and 5,894.21 is: 8,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.12 : 10,884.98 = 5,894.21 : x
  2. Step 2: Convert to fraction form
    7,887.12/10,884.98 = 5,894.21/x
  3. Step 3: Cross multiply
    7,887.12x = 10,884.98 × 5,894.21
  4. Step 4: Simplify right side
    7,887.12x = 64,158,399.91
  5. Step 5: Solve for x
    x = 64,158,399.91/7,887.12
  6. Step 6: Final answer
    x = 8,134.58

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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.