Home / 7,421.43-11,119.79-5,225.54

Finding the Fourth Proportional to 7,421.43, 11,119.79 and 5,225.54

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Solution

The fourth proportional to 7,421.43, 11,119.79 and 5,225.54 is: 7,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.43 : 11,119.79 = 5,225.54 : x
  2. Step 2: Convert to fraction form
    7,421.43/11,119.79 = 5,225.54/x
  3. Step 3: Cross multiply
    7,421.43x = 11,119.79 × 5,225.54
  4. Step 4: Simplify right side
    7,421.43x = 58,106,825.71
  5. Step 5: Solve for x
    x = 58,106,825.71/7,421.43
  6. Step 6: Final answer
    x = 7,829.60

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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.