Home / 19,146.53-26,418.33-11,187.20

Finding the Fourth Proportional to 19,146.53, 26,418.33 and 11,187.20

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Solution

The fourth proportional to 19,146.53, 26,418.33 and 11,187.20 is: 15,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.53 : 26,418.33 = 11,187.20 : x
  2. Step 2: Convert to fraction form
    19,146.53/26,418.33 = 11,187.20/x
  3. Step 3: Cross multiply
    19,146.53x = 26,418.33 × 11,187.20
  4. Step 4: Simplify right side
    19,146.53x = 295,547,009.28
  5. Step 5: Solve for x
    x = 295,547,009.28/19,146.53
  6. Step 6: Final answer
    x = 15,436.07

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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.