Home / 18,921.24-26,111.43-10,424.34

Finding the Fourth Proportional to 18,921.24, 26,111.43 and 10,424.34

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Solution

The fourth proportional to 18,921.24, 26,111.43 and 10,424.34 is: 14,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.24 : 26,111.43 = 10,424.34 : x
  2. Step 2: Convert to fraction form
    18,921.24/26,111.43 = 10,424.34/x
  3. Step 3: Cross multiply
    18,921.24x = 26,111.43 × 10,424.34
  4. Step 4: Simplify right side
    18,921.24x = 272,194,424.21
  5. Step 5: Solve for x
    x = 272,194,424.21/18,921.24
  6. Step 6: Final answer
    x = 14,385.65

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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.