Home / 19,331.36-26,678.40-10,948.40

Finding the Fourth Proportional to 19,331.36, 26,678.40 and 10,948.40

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Solution

The fourth proportional to 19,331.36, 26,678.40 and 10,948.40 is: 15,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.36 : 26,678.40 = 10,948.40 : x
  2. Step 2: Convert to fraction form
    19,331.36/26,678.40 = 10,948.40/x
  3. Step 3: Cross multiply
    19,331.36x = 26,678.40 × 10,948.40
  4. Step 4: Simplify right side
    19,331.36x = 292,085,794.56
  5. Step 5: Solve for x
    x = 292,085,794.56/19,331.36
  6. Step 6: Final answer
    x = 15,109.43

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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.