Home / 18,942-26,140.08-10,558.56

Finding the Fourth Proportional to 18,942, 26,140.08 and 10,558.56

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Solution

The fourth proportional to 18,942, 26,140.08 and 10,558.56 is: 14,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942 : 26,140.08 = 10,558.56 : x
  2. Step 2: Convert to fraction form
    18,942/26,140.08 = 10,558.56/x
  3. Step 3: Cross multiply
    18,942x = 26,140.08 × 10,558.56
  4. Step 4: Simplify right side
    18,942x = 276,001,603.08
  5. Step 5: Solve for x
    x = 276,001,603.08/18,942
  6. Step 6: Final answer
    x = 14,570.88

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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.