Home / 7,400.48-10,212.99-4,257.68

Finding the Fourth Proportional to 7,400.48, 10,212.99 and 4,257.68

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Solution

The fourth proportional to 7,400.48, 10,212.99 and 4,257.68 is: 5,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.48 : 10,212.99 = 4,257.68 : x
  2. Step 2: Convert to fraction form
    7,400.48/10,212.99 = 4,257.68/x
  3. Step 3: Cross multiply
    7,400.48x = 10,212.99 × 4,257.68
  4. Step 4: Simplify right side
    7,400.48x = 43,483,643.26
  5. Step 5: Solve for x
    x = 43,483,643.26/7,400.48
  6. Step 6: Final answer
    x = 5,875.79

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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.