Home / 13,939.78-19,236.38-7,566.24

Finding the Fourth Proportional to 13,939.78, 19,236.38 and 7,566.24

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Solution

The fourth proportional to 13,939.78, 19,236.38 and 7,566.24 is: 10,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.78 : 19,236.38 = 7,566.24 : x
  2. Step 2: Convert to fraction form
    13,939.78/19,236.38 = 7,566.24/x
  3. Step 3: Cross multiply
    13,939.78x = 19,236.38 × 7,566.24
  4. Step 4: Simplify right side
    13,939.78x = 145,547,067.81
  5. Step 5: Solve for x
    x = 145,547,067.81/13,939.78
  6. Step 6: Final answer
    x = 10,441.13

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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.