Home / 7,962.64-10,990.44-5,131.92

Finding the Fourth Proportional to 7,962.64, 10,990.44 and 5,131.92

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Solution

The fourth proportional to 7,962.64, 10,990.44 and 5,131.92 is: 7,083.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.64 : 10,990.44 = 5,131.92 : x
  2. Step 2: Convert to fraction form
    7,962.64/10,990.44 = 5,131.92/x
  3. Step 3: Cross multiply
    7,962.64x = 10,990.44 × 5,131.92
  4. Step 4: Simplify right side
    7,962.64x = 56,402,058.84
  5. Step 5: Solve for x
    x = 56,402,058.84/7,962.64
  6. Step 6: Final answer
    x = 7,083.34

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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.