Home / 7,239.57-10,872.75-4,335.72

Finding the Fourth Proportional to 7,239.57, 10,872.75 and 4,335.72

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Solution

The fourth proportional to 7,239.57, 10,872.75 and 4,335.72 is: 6,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.57 : 10,872.75 = 4,335.72 : x
  2. Step 2: Convert to fraction form
    7,239.57/10,872.75 = 4,335.72/x
  3. Step 3: Cross multiply
    7,239.57x = 10,872.75 × 4,335.72
  4. Step 4: Simplify right side
    7,239.57x = 47,141,199.63
  5. Step 5: Solve for x
    x = 47,141,199.63/7,239.57
  6. Step 6: Final answer
    x = 6,511.60

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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.