Home / 19,683.91-27,164.36-10,731.56

Finding the Fourth Proportional to 19,683.91, 27,164.36 and 10,731.56

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Solution

The fourth proportional to 19,683.91, 27,164.36 and 10,731.56 is: 14,809.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.91 : 27,164.36 = 10,731.56 : x
  2. Step 2: Convert to fraction form
    19,683.91/27,164.36 = 10,731.56/x
  3. Step 3: Cross multiply
    19,683.91x = 27,164.36 × 10,731.56
  4. Step 4: Simplify right side
    19,683.91x = 291,516,079.41
  5. Step 5: Solve for x
    x = 291,516,079.41/19,683.91
  6. Step 6: Final answer
    x = 14,809.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.