Home / 7,116.48-9,819.36-4,285.44

Finding the Fourth Proportional to 7,116.48, 9,819.36 and 4,285.44

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Solution

The fourth proportional to 7,116.48, 9,819.36 and 4,285.44 is: 5,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.48 : 9,819.36 = 4,285.44 : x
  2. Step 2: Convert to fraction form
    7,116.48/9,819.36 = 4,285.44/x
  3. Step 3: Cross multiply
    7,116.48x = 9,819.36 × 4,285.44
  4. Step 4: Simplify right side
    7,116.48x = 42,080,278.12
  5. Step 5: Solve for x
    x = 42,080,278.12/7,116.48
  6. Step 6: Final answer
    x = 5,913.07

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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.