Home / 10,550.08-15,815.52-6,642.88

Finding the Fourth Proportional to 10,550.08, 15,815.52 and 6,642.88

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Solution

The fourth proportional to 10,550.08, 15,815.52 and 6,642.88 is: 9,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,550.08 : 15,815.52 = 6,642.88 : x
  2. Step 2: Convert to fraction form
    10,550.08/15,815.52 = 6,642.88/x
  3. Step 3: Cross multiply
    10,550.08x = 15,815.52 × 6,642.88
  4. Step 4: Simplify right side
    10,550.08x = 105,060,601.50
  5. Step 5: Solve for x
    x = 105,060,601.50/10,550.08
  6. Step 6: Final answer
    x = 9,958.28

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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.