Home / 7,940.12-10,962.40-5,549.28

Finding the Fourth Proportional to 7,940.12, 10,962.40 and 5,549.28

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Solution

The fourth proportional to 7,940.12, 10,962.40 and 5,549.28 is: 7,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.12 : 10,962.40 = 5,549.28 : x
  2. Step 2: Convert to fraction form
    7,940.12/10,962.40 = 5,549.28/x
  3. Step 3: Cross multiply
    7,940.12x = 10,962.40 × 5,549.28
  4. Step 4: Simplify right side
    7,940.12x = 60,833,427.07
  5. Step 5: Solve for x
    x = 60,833,427.07/7,940.12
  6. Step 6: Final answer
    x = 7,661.52

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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.