Home / 8,921.80-12,312.84-4,944.16

Finding the Fourth Proportional to 8,921.80, 12,312.84 and 4,944.16

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Solution

The fourth proportional to 8,921.80, 12,312.84 and 4,944.16 is: 6,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.80 : 12,312.84 = 4,944.16 : x
  2. Step 2: Convert to fraction form
    8,921.80/12,312.84 = 4,944.16/x
  3. Step 3: Cross multiply
    8,921.80x = 12,312.84 × 4,944.16
  4. Step 4: Simplify right side
    8,921.80x = 60,876,651.01
  5. Step 5: Solve for x
    x = 60,876,651.01/8,921.80
  6. Step 6: Final answer
    x = 6,823.36

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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.