Home / 10,505.04-15,757.54-4,879.63

Finding the Fourth Proportional to 10,505.04, 15,757.54 and 4,879.63

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Solution

The fourth proportional to 10,505.04, 15,757.54 and 4,879.63 is: 7,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.04 : 15,757.54 = 4,879.63 : x
  2. Step 2: Convert to fraction form
    10,505.04/15,757.54 = 4,879.63/x
  3. Step 3: Cross multiply
    10,505.04x = 15,757.54 × 4,879.63
  4. Step 4: Simplify right side
    10,505.04x = 76,890,952.71
  5. Step 5: Solve for x
    x = 76,890,952.71/10,505.04
  6. Step 6: Final answer
    x = 7,319.44

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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.