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Finding the Fourth Proportional to 7,179.04, 9,895.80 and 6,576.40

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Solution

The fourth proportional to 7,179.04, 9,895.80 and 6,576.40 is: 9,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.04 : 9,895.80 = 6,576.40 : x
  2. Step 2: Convert to fraction form
    7,179.04/9,895.80 = 6,576.40/x
  3. Step 3: Cross multiply
    7,179.04x = 9,895.80 × 6,576.40
  4. Step 4: Simplify right side
    7,179.04x = 65,078,739.12
  5. Step 5: Solve for x
    x = 65,078,739.12/7,179.04
  6. Step 6: Final answer
    x = 9,065.10

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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.