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Finding the Fourth Proportional to 7,704.50, 10,633.65 and 4,392.50

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Solution

The fourth proportional to 7,704.50, 10,633.65 and 4,392.50 is: 6,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.50 : 10,633.65 = 4,392.50 : x
  2. Step 2: Convert to fraction form
    7,704.50/10,633.65 = 4,392.50/x
  3. Step 3: Cross multiply
    7,704.50x = 10,633.65 × 4,392.50
  4. Step 4: Simplify right side
    7,704.50x = 46,708,307.63
  5. Step 5: Solve for x
    x = 46,708,307.63/7,704.50
  6. Step 6: Final answer
    x = 6,062.47

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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.