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Finding the Fourth Proportional to 7,045.79, 9,704.81 and 6,520.30

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Solution

The fourth proportional to 7,045.79, 9,704.81 and 6,520.30 is: 8,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.79 : 9,704.81 = 6,520.30 : x
  2. Step 2: Convert to fraction form
    7,045.79/9,704.81 = 6,520.30/x
  3. Step 3: Cross multiply
    7,045.79x = 9,704.81 × 6,520.30
  4. Step 4: Simplify right side
    7,045.79x = 63,278,264.68
  5. Step 5: Solve for x
    x = 63,278,264.68/7,045.79
  6. Step 6: Final answer
    x = 8,981.01

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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.