Home / 10,638.34-15,957.36-4,790.80

Finding the Fourth Proportional to 10,638.34, 15,957.36 and 4,790.80

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Solution

The fourth proportional to 10,638.34, 15,957.36 and 4,790.80 is: 7,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.34 : 15,957.36 = 4,790.80 : x
  2. Step 2: Convert to fraction form
    10,638.34/15,957.36 = 4,790.80/x
  3. Step 3: Cross multiply
    10,638.34x = 15,957.36 × 4,790.80
  4. Step 4: Simplify right side
    10,638.34x = 76,448,520.29
  5. Step 5: Solve for x
    x = 76,448,520.29/10,638.34
  6. Step 6: Final answer
    x = 7,186.13

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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.