Home / 7,962.41-10,985.06-5,129.56

Finding the Fourth Proportional to 7,962.41, 10,985.06 and 5,129.56

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Solution

The fourth proportional to 7,962.41, 10,985.06 and 5,129.56 is: 7,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.41 : 10,985.06 = 5,129.56 : x
  2. Step 2: Convert to fraction form
    7,962.41/10,985.06 = 5,129.56/x
  3. Step 3: Cross multiply
    7,962.41x = 10,985.06 × 5,129.56
  4. Step 4: Simplify right side
    7,962.41x = 56,348,522.08
  5. Step 5: Solve for x
    x = 56,348,522.08/7,962.41
  6. Step 6: Final answer
    x = 7,076.82

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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.