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Finding the Fourth Proportional to 7,320.30, 10,980.45 and 6,089.10

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Solution

The fourth proportional to 7,320.30, 10,980.45 and 6,089.10 is: 9,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.30 : 10,980.45 = 6,089.10 : x
  2. Step 2: Convert to fraction form
    7,320.30/10,980.45 = 6,089.10/x
  3. Step 3: Cross multiply
    7,320.30x = 10,980.45 × 6,089.10
  4. Step 4: Simplify right side
    7,320.30x = 66,861,058.10
  5. Step 5: Solve for x
    x = 66,861,058.10/7,320.30
  6. Step 6: Final answer
    x = 9,133.65

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Similar ratio
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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.