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Finding the Fourth Proportional to 7,563.04, 10,441.92 and 7,040.32

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Solution

The fourth proportional to 7,563.04, 10,441.92 and 7,040.32 is: 9,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.04 : 10,441.92 = 7,040.32 : x
  2. Step 2: Convert to fraction form
    7,563.04/10,441.92 = 7,040.32/x
  3. Step 3: Cross multiply
    7,563.04x = 10,441.92 × 7,040.32
  4. Step 4: Simplify right side
    7,563.04x = 73,514,458.21
  5. Step 5: Solve for x
    x = 73,514,458.21/7,563.04
  6. Step 6: Final answer
    x = 9,720.23

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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.