Home / 19,399.26-26,771.51-10,902.15

Finding the Fourth Proportional to 19,399.26, 26,771.51 and 10,902.15

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Solution

The fourth proportional to 19,399.26, 26,771.51 and 10,902.15 is: 15,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.26 : 26,771.51 = 10,902.15 : x
  2. Step 2: Convert to fraction form
    19,399.26/26,771.51 = 10,902.15/x
  3. Step 3: Cross multiply
    19,399.26x = 26,771.51 × 10,902.15
  4. Step 4: Simplify right side
    19,399.26x = 291,867,045.81
  5. Step 5: Solve for x
    x = 291,867,045.81/19,399.26
  6. Step 6: Final answer
    x = 15,045.27

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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.