Home / 8,928.31-12,321.80-4,950.70

Finding the Fourth Proportional to 8,928.31, 12,321.80 and 4,950.70

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Solution

The fourth proportional to 8,928.31, 12,321.80 and 4,950.70 is: 6,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.31 : 12,321.80 = 4,950.70 : x
  2. Step 2: Convert to fraction form
    8,928.31/12,321.80 = 4,950.70/x
  3. Step 3: Cross multiply
    8,928.31x = 12,321.80 × 4,950.70
  4. Step 4: Simplify right side
    8,928.31x = 61,001,595.42
  5. Step 5: Solve for x
    x = 61,001,595.42/8,928.31
  6. Step 6: Final answer
    x = 6,832.38

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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.