Home / 8,968.12-13,430.24-7,743.40

Finding the Fourth Proportional to 8,968.12, 13,430.24 and 7,743.40

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Solution

The fourth proportional to 8,968.12, 13,430.24 and 7,743.40 is: 11,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.12 : 13,430.24 = 7,743.40 : x
  2. Step 2: Convert to fraction form
    8,968.12/13,430.24 = 7,743.40/x
  3. Step 3: Cross multiply
    8,968.12x = 13,430.24 × 7,743.40
  4. Step 4: Simplify right side
    8,968.12x = 103,995,720.42
  5. Step 5: Solve for x
    x = 103,995,720.42/8,968.12
  6. Step 6: Final answer
    x = 11,596.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.