Home / 7,485.84-10,334.56-5,220.48

Finding the Fourth Proportional to 7,485.84, 10,334.56 and 5,220.48

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Solution

The fourth proportional to 7,485.84, 10,334.56 and 5,220.48 is: 7,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.84 : 10,334.56 = 5,220.48 : x
  2. Step 2: Convert to fraction form
    7,485.84/10,334.56 = 5,220.48/x
  3. Step 3: Cross multiply
    7,485.84x = 10,334.56 × 5,220.48
  4. Step 4: Simplify right side
    7,485.84x = 53,951,363.79
  5. Step 5: Solve for x
    x = 53,951,363.79/7,485.84
  6. Step 6: Final answer
    x = 7,207.12

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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.