Home / 10,528.71-15,792.85-3,138.13

Finding the Fourth Proportional to 10,528.71, 15,792.85 and 3,138.13

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Solution

The fourth proportional to 10,528.71, 15,792.85 and 3,138.13 is: 4,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.71 : 15,792.85 = 3,138.13 : x
  2. Step 2: Convert to fraction form
    10,528.71/15,792.85 = 3,138.13/x
  3. Step 3: Cross multiply
    10,528.71x = 15,792.85 × 3,138.13
  4. Step 4: Simplify right side
    10,528.71x = 49,560,016.37
  5. Step 5: Solve for x
    x = 49,560,016.37/10,528.71
  6. Step 6: Final answer
    x = 4,707.13

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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.