Home / 7,615.35-10,508.75-4,212.17

Finding the Fourth Proportional to 7,615.35, 10,508.75 and 4,212.17

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Solution

The fourth proportional to 7,615.35, 10,508.75 and 4,212.17 is: 5,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.35 : 10,508.75 = 4,212.17 : x
  2. Step 2: Convert to fraction form
    7,615.35/10,508.75 = 4,212.17/x
  3. Step 3: Cross multiply
    7,615.35x = 10,508.75 × 4,212.17
  4. Step 4: Simplify right side
    7,615.35x = 44,264,567.88
  5. Step 5: Solve for x
    x = 44,264,567.88/7,615.35
  6. Step 6: Final answer
    x = 5,812.55

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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.