Home / 7,400.74-10,215.21-4,259.14

Finding the Fourth Proportional to 7,400.74, 10,215.21 and 4,259.14

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Solution

The fourth proportional to 7,400.74, 10,215.21 and 4,259.14 is: 5,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.74 : 10,215.21 = 4,259.14 : x
  2. Step 2: Convert to fraction form
    7,400.74/10,215.21 = 4,259.14/x
  3. Step 3: Cross multiply
    7,400.74x = 10,215.21 × 4,259.14
  4. Step 4: Simplify right side
    7,400.74x = 43,508,009.52
  5. Step 5: Solve for x
    x = 43,508,009.52/7,400.74
  6. Step 6: Final answer
    x = 5,878.87

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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.