Home / 7,400.80-10,212.87-4,415.10

Finding the Fourth Proportional to 7,400.80, 10,212.87 and 4,415.10

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Solution

The fourth proportional to 7,400.80, 10,212.87 and 4,415.10 is: 6,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.80 : 10,212.87 = 4,415.10 : x
  2. Step 2: Convert to fraction form
    7,400.80/10,212.87 = 4,415.10/x
  3. Step 3: Cross multiply
    7,400.80x = 10,212.87 × 4,415.10
  4. Step 4: Simplify right side
    7,400.80x = 45,090,842.34
  5. Step 5: Solve for x
    x = 45,090,842.34/7,400.80
  6. Step 6: Final answer
    x = 6,092.70

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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.