Home / 13,280.71-19,933.38-6,711.51

Finding the Fourth Proportional to 13,280.71, 19,933.38 and 6,711.51

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Solution

The fourth proportional to 13,280.71, 19,933.38 and 6,711.51 is: 10,073.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.71 : 19,933.38 = 6,711.51 : x
  2. Step 2: Convert to fraction form
    13,280.71/19,933.38 = 6,711.51/x
  3. Step 3: Cross multiply
    13,280.71x = 19,933.38 × 6,711.51
  4. Step 4: Simplify right side
    13,280.71x = 133,783,079.20
  5. Step 5: Solve for x
    x = 133,783,079.20/13,280.71
  6. Step 6: Final answer
    x = 10,073.49

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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.