Home / 10,528.45-15,791.76-4,289.13

Finding the Fourth Proportional to 10,528.45, 15,791.76 and 4,289.13

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Solution

The fourth proportional to 10,528.45, 15,791.76 and 4,289.13 is: 6,433.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.45 : 15,791.76 = 4,289.13 : x
  2. Step 2: Convert to fraction form
    10,528.45/15,791.76 = 4,289.13/x
  3. Step 3: Cross multiply
    10,528.45x = 15,791.76 × 4,289.13
  4. Step 4: Simplify right side
    10,528.45x = 67,732,911.57
  5. Step 5: Solve for x
    x = 67,732,911.57/10,528.45
  6. Step 6: Final answer
    x = 6,433.32

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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.