Home / 9,740.24-13,440.56-5,491.20

Finding the Fourth Proportional to 9,740.24, 13,440.56 and 5,491.20

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Solution

The fourth proportional to 9,740.24, 13,440.56 and 5,491.20 is: 7,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.24 : 13,440.56 = 5,491.20 : x
  2. Step 2: Convert to fraction form
    9,740.24/13,440.56 = 5,491.20/x
  3. Step 3: Cross multiply
    9,740.24x = 13,440.56 × 5,491.20
  4. Step 4: Simplify right side
    9,740.24x = 73,804,775.62
  5. Step 5: Solve for x
    x = 73,804,775.62/9,740.24
  6. Step 6: Final answer
    x = 7,577.31

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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.