Home / 10,487.07-15,730.50-3,091.57

Finding the Fourth Proportional to 10,487.07, 15,730.50 and 3,091.57

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Solution

The fourth proportional to 10,487.07, 15,730.50 and 3,091.57 is: 4,637.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.07 : 15,730.50 = 3,091.57 : x
  2. Step 2: Convert to fraction form
    10,487.07/15,730.50 = 3,091.57/x
  3. Step 3: Cross multiply
    10,487.07x = 15,730.50 × 3,091.57
  4. Step 4: Simplify right side
    10,487.07x = 48,631,914.15
  5. Step 5: Solve for x
    x = 48,631,914.15/10,487.07
  6. Step 6: Final answer
    x = 4,637.32

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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.