Home / 19,122.66-26,386.92-11,159.10

Finding the Fourth Proportional to 19,122.66, 26,386.92 and 11,159.10

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Solution

The fourth proportional to 19,122.66, 26,386.92 and 11,159.10 is: 15,398.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.66 : 26,386.92 = 11,159.10 : x
  2. Step 2: Convert to fraction form
    19,122.66/26,386.92 = 11,159.10/x
  3. Step 3: Cross multiply
    19,122.66x = 26,386.92 × 11,159.10
  4. Step 4: Simplify right side
    19,122.66x = 294,454,278.97
  5. Step 5: Solve for x
    x = 294,454,278.97/19,122.66
  6. Step 6: Final answer
    x = 15,398.19

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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.