Home / 7,120.56-10,668.96-6,304.08

Finding the Fourth Proportional to 7,120.56, 10,668.96 and 6,304.08

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Solution

The fourth proportional to 7,120.56, 10,668.96 and 6,304.08 is: 9,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.56 : 10,668.96 = 6,304.08 : x
  2. Step 2: Convert to fraction form
    7,120.56/10,668.96 = 6,304.08/x
  3. Step 3: Cross multiply
    7,120.56x = 10,668.96 × 6,304.08
  4. Step 4: Simplify right side
    7,120.56x = 67,257,977.36
  5. Step 5: Solve for x
    x = 67,257,977.36/7,120.56
  6. Step 6: Final answer
    x = 9,445.60

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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.