Home / 7,404.48-10,218.40-4,047.60

Finding the Fourth Proportional to 7,404.48, 10,218.40 and 4,047.60

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Solution

The fourth proportional to 7,404.48, 10,218.40 and 4,047.60 is: 5,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.48 : 10,218.40 = 4,047.60 : x
  2. Step 2: Convert to fraction form
    7,404.48/10,218.40 = 4,047.60/x
  3. Step 3: Cross multiply
    7,404.48x = 10,218.40 × 4,047.60
  4. Step 4: Simplify right side
    7,404.48x = 41,359,995.84
  5. Step 5: Solve for x
    x = 41,359,995.84/7,404.48
  6. Step 6: Final answer
    x = 5,585.81

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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.